HerbaLean Ultra II
Full Paper
Part I: Weight Management — Statistics, Trends, Needs & Concerns (US & China)
The Scale of the Overweight and Obesity Challenge
Overweight and obesity represent one of the most significant and fastest-growing public health challenges in both the United States and China. According to the CDC’s report, the prevalence of obesity among US adults reached 41.9% in 2020, with severe obesity affecting an additional 9.2% — meaning more than half of all American adults carry excess body weight that meaningfully affects their metabolic health. The economic burden is equally staggering: research published in Health Affairs estimated obesity-related medical costs in the US at over $147 billion annually. “Adult Obesity Facts” “Prevalence of obesity and severe obesity among adults: United States, 2017–2018” “Study Estimates Medical Cost of Obesity May Be As High as $147 Billion Annually”
In China, the weight management challenge has accelerated dramatically with economic development. Research published in Frontiers in Endocrinology documented that the prevalence of overweight and obesity in China has tripled over the past three decades, with approximately 50% of adults now classified as overweight or obese using Chinese clinical standards — representing over 600 million people. China now carries one of the largest absolute burdens of obesity-related metabolic disease on the planet. “Projecting National-Level Prevalence of General Obesity and Abdominal Obesity Among Chinese Adults With Aging Effects”
The global weight management supplement market has responded to this need. According to Grand View Research, the global market was valued at $14.5 billion in 2024 and is projected to grow significantly through 2030, driven by increasing consumer preference for natural, non-pharmaceutical approaches to weight management support. “Weight Loss Supplement Market (2025 – 2030)”
Key Trends Shaping Weight Management Across Both Markets
Several converging trends define the weight management supplement landscape in the US and China:
•Post-GLP-1 consumer awareness: The clinical success of GLP‑1 receptor agonist drugs in treating type 2 diabetes and obesity has brought metabolic regulation into mainstream attention, highlighting the roles of blood glucose control, appetite signaling, and fat metabolism. As these medicines have demonstrated substantial benefits across multiple metabolic pathways and are now widely discussed outside specialist circles, public and clinician awareness of these mechanisms has markedly increased. In this context, consumer interest is increasingly shifting toward natural ingredients and dietary supplements that act on similar pathways—supporting glycemic control, modulating appetite, and influencing fat metabolism—as complementary strategies to lifestyle changes and, where appropriate, pharmacologic care. “Mechanisms of Action and Therapeutic Application of Glucagon-like Peptide-1” “GLP-1 receptor agonism: a transformative approach for managing type-2 diabetes and obesity”
•Metabolic syndrome as a gateway concern: Research published in Circulation documents that approximately 34% of American adults meet criteria for metabolic syndrome — a cluster of conditions including excess waist circumference, elevated fasting glucose, dyslipidemia, and elevated blood pressure. Supplements targeting metabolic syndrome comprehensively are increasingly preferred over single-target products. “Trends in Diabetes and Metabolic Syndrome: An Analysis of National Health and Nutrition Examination Surveys (2003-2012)”
•Thyroid and hormonal weight management: Thyroid function is widely recognized as a primary determinant of basal metabolic rate, energy expenditure, and body‑weight regulation. In both clinical practice and public health discussions, growing attention to thyroid disorders and subclinical thyroid dysfunction has highlighted how even modest alterations in thyroid hormones can significantly affect resting metabolism, thermogenesis, and weight‑loss responsiveness. Against this backdrop, thyroid‑supportive ingredients are increasingly positioned within weight management formulas as a way to support healthy metabolic rate alongside diet and lifestyle interventions. “Thyroid Hormone Regulation of Metabolism” “Thyroid hormones and changes in body weight and metabolic rate” “Exploring the link between thyroid disorders and obesity”
•The gut-metabolism connection: Research published in Cell and Cell Host & Microbe documents that gut microbiome composition meaningfully influences energy harvest, adiposity, insulin sensitivity, and systemic inflammation — making microbiome-supportive ingredients increasingly relevant to weight management formulas. “The gut microbiota, obesity and insulin resistance” “Intestinal Microbiota Contributes to Energy Balance, Metabolic Inflammation, and Insulin Resistance in Obesity” “Impact of the gut microbiota on inflammation, obesity, and metabolic disease”
Part II: Benefits of Daily HerbaLean Ultra II Supplementation
HerbaLean Ultra II is a comprehensive metabolic support formula designed to address multiple pathways involved in healthy weight management — from fat metabolism and thermogenesis to blood sugar regulation, appetite signaling, thyroid function, and gut microbiome health. The formula represents a significant reformulation with an expanded and scientifically refined ingredient profile.
Green Tea Extract (95% Polyphenols, 45% EGCG)
The thermogenic core of HerbaLean Ultra II is a highly concentrated Green Tea Extract standardized to 95% total polyphenols and 45% EGCG. Research published in the Journal of Medical Food documented the mechanism by which EGCG induces thermogenesis: it inhibits catechol-O-methyltransferase (COMT), the enzyme that degrades norepinephrine, thereby prolonging sympathetic nervous system stimulation of thermogenesis and fat oxidation. A systematic review and meta-analysis published in the British Journal of Nutrition (2024), evaluating randomized controlled trials, confirmed that green tea catechin supplementation produced significant reductions in body weight and fat mass compared to placebo, with the strongest effects observed in subjects following a hypocaloric diet. “Green tea extract thermogenesis-induced weight loss” “Effect of Acute and Chronic Dietary Supplementation with Green Tea Catechins on Resting Metabolic Rate, Energy Expenditure and Respiratory Quotient: A Systematic Review”
Irvingia Gabonensis Seed Extract
Also known as African Mango, Irvingia gabonensis seed extract has been studied specifically for its effects on body weight, adipogenesis, and metabolic markers. A double-blind, randomized, placebo-controlled trial registered at ClinicalTrials.gov (NCT00645775) and published in Lipids in Health and Disease found that 10 weeks of Irvingia supplementation produced significant reductions in body weight, waist circumference, total cholesterol, LDL cholesterol, blood glucose, and C-reactive protein compared to placebo. A systematic review published in PubMed (PMID 23419021) identified three randomized controlled trials, all of which reported statistically significant reductions in body weight and waist circumference favoring Irvingia over placebo, with additional positive effects on blood lipid profiles. “IGOB131, a novel seed extract of the West African plant Irvingia gabonensis, significantly reduces body weight and improves metabolic parameters in overweight humans in a randomized double-blind placebo controlled investigation” “The efficacy of Irvingia gabonensis supplementation in the management of overweight and obesity” “Effect of Irvingia gabonensis Seeds on Body Weight and Blood Lipids — Double-Blind RCT”
Cissus Quadrangularis (2.5% 3-Ketosteroids)
Cissus quadrangularis has been extensively studied for its effects on weight and metabolic syndrome. A randomized, double-blind, placebo-controlled trial published in Lipids in Health and Disease (PMID 16948861) involving 123 overweight and obese participants documented statistically significant net reductions in weight, central obesity, fasting blood glucose, total cholesterol, LDL cholesterol, triglycerides, and C-reactive protein in the Cissus group regardless of diet. A 2021 human clinical trial published in Scientific Reports found that Cissus quadrangularis extract significantly decreased waist and hip circumferences and — uniquely — enhanced UCP1 mRNA expression in human white adipocyte cells, suggesting a browning-of-white-adipose-tissue mechanism that supports thermogenesis. A systematic review and meta-analysis published in Phytotherapy Research (2017) pooled results from nine trials including 1,108 patients and confirmed that Cissus combination products produced superior reductions in body weight, LDL, triglycerides, total cholesterol, and fasting blood sugar compared to placebo. More recently, a 2025 randomized controlled trial published in Medicina found that Cissus quadrangularis extract significantly elevated circulating GLP-1 levels (+42.2 pg/mL) and reduced DPP-4 activity, producing body weight reductions comparable to semaglutide in the study population — positioning Cissus as a natural incretin-pathway modulator. “The use of a Cissus quadrangularis formulation in the management of weight loss and metabolic syndrome.” “Cissus quadrangularis enhances UCP1 mRNA, indicative of white adipocyte browning and decreases central obesity in humans in a randomized trial.” “Efficacy and Safety of Cissus quadrangularis L. in Clinical Use: A Systematic Review and Meta-analysis of Randomized Controlled Trials.” “Effects of Dichrostachys glomerata and Cissus quadrangularis Extracts on GLP-1 Secretion and DPP-4 Activity in Overweight and Obese Individuals: A Randomized Controlled Trial.”
L-Carnitine Tartrate
L-Carnitine plays an essential role in fat metabolism by transporting long-chain fatty acids across the inner mitochondrial membrane for beta-oxidation. Without adequate carnitine, fatty acids cannot enter the mitochondria and be burned for energy. A meta-analysis of 37 randomized controlled trials (n=2,292 participants) found that L-Carnitine supplementation was associated with significant reductions in body weight (−1.21 kg), BMI (−0.47), and fat mass (−2.17 kg) compared to placebo, with effects more pronounced at doses of 2,000 mg/day or greater and when combined with exercise. The tartrate form is used in HerbaLean Ultra II for its superior stability and absorption characteristics compared to free-form L-carnitine. “L-Carnitine as a Weight Loss Supplement — Meta-Analysis of 37 Studies, 2,292 Participants”
Berberine HCl
Berberine has attracted intense scientific attention for its multi-pathway effects on metabolic health. Research published in American Journal of Physiology — Endocrinology and Metabolism (PMID 19176354) documented that berberine activates AMP-activated protein kinase (AMPK) — often called the “metabolic master switch” — in both peripheral tissues and the central nervous system, improving lipid dysregulation and fatty liver in obese models through this dual mechanism. A comprehensive 2025 review published in PMC documented berberine’s emerging role as a multi-target therapeutic agent for obesity, acting through AMPK activation, gut microbiome modulation, adipogenesis inhibition, and GLP-1 pathway influence. Importantly, a 2022 review in PMC documented berberine’s effects on the metabolic syndrome through mechanisms including improvement in insulin sensitivity, reduction of triglycerides, and anti-inflammatory activity — a profile that complements every other ingredient in the HerbaLean Ultra II formula. “Berberine Improves Lipid Dysregulation in Obesity by Activation of AMPK” “Berberine as a Multi-Target Therapeutic Agent for Obesity — Comprehensive Review” “Berberine in the Metabolic Syndrome: Anti-Inflammatory and Insulin-Sensitizing Mechanisms”
Medium Chain Triglycerides (MCTs) 75%
Medium Chain Triglycerides differ fundamentally from long-chain fats in their metabolic fate: they are rapidly absorbed from the gut, transported directly to the liver via the portal vein, and preferentially oxidized for energy rather than stored in adipose tissue. A randomized controlled trial published in Obesity Research (PMID 12634436) comparing MCT-rich and LCT-rich diets over 28 days documented greater upper body adipose tissue loss and greater average energy expenditure with MCT consumption. A systematic review and meta-analysis published in the European Journal of Clinical Nutrition (2015), analyzing 13 randomized controlled trials (n=749), found that substitution of MCTs for long-chain triglycerides significantly reduced body weight (−0.51 kg), waist circumference (−1.46 cm), hip circumference (−0.79 cm), total body fat, and visceral fat, without adverse effects on blood lipid profiles. “Medium-chain triglycerides increase energy expenditure and decrease adiposity in overweight men”
Fucoxanthin (10%)
Fucoxanthin is a carotenoid found exclusively in brown algae with a documented and mechanistically unique anti-obesity mechanism. Research published in Biochemical and Biophysical Research Communications (PMID 15896707) was the first to document that fucoxanthin induces UCP1 (uncoupling protein 1) expression in white adipose tissue — a mechanism previously observed only in brown adipose tissue. This white adipose thermogenesis effect means fucoxanthin promotes energy dissipation in the fat tissue where excess energy is stored. A comprehensive review published in the Journal of Oleo Science (PMID 25748372) documented that fucoxanthin also improves insulin resistance and blood glucose levels through downregulation of adipocytokines and upregulation of GLUT4 in skeletal muscle — making it both a thermogenic and insulin-sensitizing ingredient. “Nutraceutical effects of fucoxanthin for obesity and diabetes therapy: a review” “Fucoxanthin from edible seaweed, Undaria pinnatifida, shows antiobesity effect through UCP1 expression in white adipose tissues”
Inositol
Inositol is a sugar alcohol that serves as a critical second messenger in insulin signaling pathways. Research published in PMC (2022) established myo-inositol’s role in supporting insulin sensitivity and metabolic health, with a systematic review published in Obesity Science & Practice (2021) finding that inositol supplementation was associated with significant reductions in BMI, particularly in adults under 30 and in individuals with insulin resistance. Research published in Frontiers in Endocrinology (2025) specifically documented that the combination of inositol supplementation with lifestyle changes can reduce excess weight and improve insulin sensitivity in insulin-resistant individuals. The meta-analysis published in Frontiers in Endocrinology (2026) synthesizing 13 meta-analyses confirmed that inositol significantly improves HOMA-IR (insulin resistance index), fasting insulin, and multiple metabolic parameters — making it a mechanistically sound complement to the formula’s chromium and berberine for insulin pathway support. “Myo-inositol for insulin resistance, metabolic syndrome, polycystic ovary syndrome and gestational diabetes” “Inositol supplementation and body mass index: A systematic review and meta‐analysis of randomized clinical trials” “Unexpected effects of treating insulin-resistant obese women with high-dose D-chiro-inositol” “
CoQ10
Coenzyme Q10 is an essential electron carrier in the mitochondrial respiratory chain — the cellular machinery responsible for converting fat and glucose into usable energy (ATP). Research published in the Journal of Nutritional Biochemistry (2025) documented that CoQ10 supplementation in an obese animal model ameliorated weight gain, white adipocyte hypertrophy, and metabolic disorders through a white adipose tissue browning mechanism, upregulating UCP-1, PRDM16, PGC-1α, and phosphorylated AMPK — mirroring the mechanisms of fucoxanthin and Cissus. A meta-analysis published in Frontiers in Nutrition (PMC 2021) reviewed CoQ10’s effects on anthropometric indices, providing clinical context for its inclusion as a mitochondrial energetics support ingredient. “CoQ10 Ameliorates Obesity by Promoting White Adipose Tissue Browning — UCP1, PGC-1α, AMPK Activation” “CoQ10 Improves Lipid Metabolism and Ameliorates Obesity via CaMKII-Mediated PDE4 Inhibition”
L-Methionine
L-Methionine is an essential amino acid with a well-documented lipotropic role in fat metabolism. Research published in the Journal of Physiology as early as 1940 (PMC 1393926) established the lipotropic action of methionine — its ability to prevent excess fat accumulation in the liver by facilitating fat export. More recently, research published in the Journal of Nutrition (PMC 3781441, 2013) documented that dietary methionine modulates the integration of lipid metabolism between liver and adipose tissue, improving biomarkers of metabolic health and limiting fat accretion. Research published in PMC (2011, PMID 21280806) further documented that dietary methionine restriction increased fat oxidation and decreased intrahepatic lipid content in individuals with metabolic syndrome — illuminating methionine’s central regulatory role in hepatic fat metabolism. In HerbaLean Ultra II, L-Methionine also supports the biosynthesis of carnitine and choline — two other ingredients in the formula — through its role as the primary methyl donor in one-carbon metabolism. “The Lipotropic Action of Methionine” “Remodeling the Integration of Lipid Metabolism Between Liver and Adipose Tissue by Dietary Methionine Restriction in Rats”
Vitamin B6 (as Pyridoxine HCl)
Vitamin B6 is an essential cofactor for over 100 enzymatic reactions in amino acid and fat metabolism. Critically for a weight management formula, research published in the Journal of Nutrition (PMID 2319343) documented that B6 is required for carnitine biosynthesis — the process by which the body produces L-carnitine from lysine and methionine. In B6-deficient animals, carnitine levels in plasma, skeletal muscle, and heart muscle were significantly lower, and were restored upon B6 repletion. This makes B6 a foundational cofactor for the formula’s L-carnitine and fat oxidation activity. B6 also supports the metabolism of homocysteine and is required for glycogen phosphorylase — the enzyme that releases glucose from stored glycogen to regulate blood sugar. “In Vivo Evidence for Vitamin B6 Requirement in Carnitine Biosynthesis”
Choline (as Choline DL-Bitartrate)
Choline is an essential nutrient that plays a central role in hepatic fat metabolism. Research published in PMC (PMID 3601486) established that choline is required for the synthesis of phosphatidylcholine — a critical structural component of VLDL particles that export fat from the liver. Choline deficiency leads to hepatosteatosis (fatty liver) because the liver cannot package and export triglycerides efficiently. A 2023 clinical and mechanistic study published in the International Journal of Obesity (PMID 36732416) documented that dietary choline reduced body fat mass gain, prevented adipocyte enlargement, attenuated adipose tissue inflammation, and ameliorated liver steatosis in a validated metabolic model — with the mechanism involving enhanced brown adipose tissue uptake of fatty acids from triglyceride-rich lipoproteins, accelerating fat clearance. Together with L-methionine, choline provides the lipotropic support that keeps the liver functioning as an efficient fat-processing organ. “Dietary Choline Increases Brown Adipose Tissue Activation and Reduces Body Fat” “Choline Metabolism Provides Novel Insights into Non-Alcoholic Fatty Liver Disease”
Vitamin C (as Ascorbic Acid)
Vitamin C plays a metabolically important role in weight management that is frequently underappreciated. A comprehensive review published in Nutrition Reviews (2026) documented that hypovitaminosis C is associated with obesity and features of metabolic syndrome, and that adding vitamin C to physical activity and dietary interventions may improve the efficacy of obesity treatments. At the cellular level, vitamin C is required for carnitine biosynthesis — alongside B6 and methionine — making it a critical cofactor for the fat transport and oxidation pathway that is central to HerbaLean Ultra II’s thermogenic action. Vitamin C also supports normal cortisol regulation, which is relevant to stress-related weight gain, and acts as a key antioxidant protecting cells from oxidative stress generated during intensive fat metabolism. “Hypovitaminosis C, Obesity, and Metabolic Syndrome Features” “Marginal vitamin C status is associated with reduced fat oxidation during submaximal exercise in young adults”
Vitamin D (as Cholecalciferol)
Vitamin D is increasingly recognized as a metabolically active hormone with direct effects on adipose tissue. Research published in Frontiers in Physiology (2014) documented an inverse association between obesity and vitamin D levels — with higher BMI causally related to lower 25-hydroxyvitamin D — making supplementation particularly relevant for the overweight population that HerbaLean Ultra II targets. A study published in Nutrition (PMID 26899162) documented that the active form of vitamin D inhibits adipocyte fat storage and increases lipolysis in mature fat cells through a mechanism involving elevated NAD concentrations and SIRT1 activity. A review published in PMC (2023) confirmed vitamin D’s modulation of multiple metabolic pathways in adipose tissue, including genes involved in fat storage, thermogenesis, and inflammation. “BMI Causally Related to Lower Vitamin D: Adipose Tissue and Obesity” “Vitamin D decreases adipocyte lipid storage and increases NAD-SIRT1 pathway in 3T3-L1 adipocytes”
Chromium (as Chromium Nicotinate)
Chromium is a trace mineral that has been studied for its role in supporting insulin action and carbohydrate metabolism. Research suggests that chromium may enhance insulin receptor sensitivity and contribute to healthy blood glucose handling, though results across studies vary depending on the population studied. A clinical trial published in Diabetes Care found that chromium picolinate supplementation attenuated body weight gain and increased insulin sensitivity in subjects with type 2 diabetes — particularly among those with impaired glucose regulation. The NIH Office of Dietary Supplements notes that chromium supplementation has shown benefits for insulin sensitivity and glucose metabolism in some subjects, while acknowledging that results are not consistent across all populations. In HerbaLean Ultra II, chromium is provided in the nicotinate form at 200 mcg (571% DV), working synergistically with the formula’s berberine, inositol, and cinnamon to provide comprehensive insulin pathway support. “Chromium” “Chromium Picolinate Supplementation Attenuates Body Weight Gain and Increases Insulin Sensitivity in Subjects With Type 2 Diabetes”
Iodine (from Brown Kelp)
Iodine is the essential mineral required for thyroid hormone synthesis — and the thyroid is the body’s primary metabolic rate regulator. A review published in PMC (2021) titled “Iodine, Seaweed, and the Thyroid” documents that even minor iodine deficiency can result in adverse thyroidal health consequences. The inclusion of iodine from Brown Kelp (Ascophyllum nodosum / Laminaria digitata) in HerbaLean Ultra II reflects the formula’s recognition that thyroid support is foundational to metabolic rate. Both Ascophyllum nodosum and Laminaria digitata have been studied as sources of biologically available iodine. A randomized crossover placebo-controlled trial published in PMC (2021) examining brown seaweeds found that Ascophyllum nodosum and Fucus vesiculosus together altered insulin homeostasis in response to carbohydrate ingestion, reducing insulin incremental area under the curve and increasing insulin sensitivity — suggesting metabolic benefits beyond simple iodine provision. “Iodine, Seaweed, and the Thyroid — Even Minor Deficiency Produces Adverse Thyroidal Consequences” “Clinical Efficacy of Brown Seaweeds (Ascophyllum nodosum): Insulin Homeostasis and Metabolic Syndrome”
Apple Fiber
Apple Fiber provides a substantial soluble fiber component that supports multiple metabolic mechanisms relevant to weight management. Research using apple-derived pectin specifically has documented its ability to modulate gut microbiota composition, improve gut barrier function, and attenuate the metabolic endotoxemia associated with diet-induced obesity — making apple fiber a functionally active ingredient rather than simply a bulking agent. As a soluble fiber, apple pectin forms a viscous gel in the gut that slows gastric emptying, moderates postprandial glucose and insulin responses, selectively feeds beneficial Bifidobacterium and Lactobacillus species, and supports feelings of fullness by extending the sensation of satiety. The gut microbiome modulation effects of dietary fiber are particularly relevant given the well-established connection between gut microbiota composition, energy harvest, and body weight regulation. “Apple-Derived Pectin Modulates Gut Microbiota, Improves Gut Barrier Function, and Attenuates Metabolic Endotoxemia in Rats with Diet-Induced Obesity” “Soluble Dietary Fiber, One of the Most Important Nutrients for the Gut Microbiota”
Bladderwrack Powder and Brown Kelp (Ascophyllum Nodosum / Laminaria Digitata)
This dual seaweed complex provides complementary metabolic and thyroid support alongside the formula’s iodine contribution. A comprehensive review published in PMC (2020) titled “Brown Seaweeds for the Management of Metabolic Syndrome” documented that brown seaweeds contain a range of bioactive compounds — including fucoidan, phlorotannins, and fucoxanthin precursors — that support healthy lipid metabolism, glucose regulation, and inflammation balance. Bladderwrack (Fucus vesiculosus) has been historically used in traditional medicine for its thyroid-supportive and metabolic properties, with its iodine and trace mineral content complementing the formula’s primary metabolic rate support. The 2021 clinical study on brown seaweeds (PMC 7866543) examining Ascophyllum nodosum and related species found significant effects on post-meal blood glucose and insulin dynamics — adding a glucose-modulating dimension to the seaweed complex. “Brown Seaweeds for the Management of Metabolic Syndrome — Fucoidan, Phlorotannins, and Bioactive Compounds” “Clinical Efficacy of Brown Seaweeds Ascophyllum nodosum and Fucus vesiculosus in the Prevention or Delay Progression of the Metabolic Syndrome: A Review of Clinical Trials”
Spirulina
Spirulina is a blue‑green microalgae with a uniquely dense nutritional and bioactive profile. A GRADE‑assessed dose–response meta‑analysis of randomized controlled trials in adults found that spirulina supplementation led to significant reductions in body weight, body mass index, and body fat percentage, with evidence of dose‑dependent effects on these anthropometric measures. A 2025 systematic review and meta‑analysis of spirulina in obesity, hypertension, and related metabolic disorders reported consistent benefits on body weight, BMI, waist circumference, and several cardiometabolic markers in adults, including those with type 2 diabetes and metabolic syndrome. Mechanistic studies and reviews indicate that spirulina’s effects are mediated through modulation of appetite and energy intake, potent antioxidant and anti‑inflammatory activity in metabolic tissues, and the ability of spirulina extracts to influence gut microbiota composition and short‑chain fatty acid production. “Effects of spirulina supplementation on body composition in adults: a GRADE-assessed and dose–response meta-analysis of RCTs – PMC” “Impact of Spirulina Supplementation on Obesity, Hypertension, Hyperglycemia, and Hyperlipidemia: A Systematic Review” “Effects of spirulina on weight loss and blood lipids: a review”
DL-Phenylalanine (DLPA)
DL-Phenylalanine is a combination of D-phenylalanine and L-phenylalanine that plays a unique role in appetite and satiety regulation. L-phenylalanine stimulates the release of cholecystokinin (CCK), a gastrointestinal hormone that signals satiety to the brain and slows gastric emptying. D-phenylalanine inhibits enkephalinase, the enzyme that degrades endogenous endorphins — supporting natural reward pathways that may reduce compulsive eating behavior. Both forms are precursors to L-tyrosine, which in turn is the precursor to the catecholamine neurotransmitters dopamine and norepinephrine — both of which play central roles in appetite regulation, thermogenesis, and metabolic rate. “L-phenylalanine releases cholecystokinin (CCK) and is associated with reduced food intake in humans: evidence for a physiological role of CCK in control of eating” “Role of cholecystokinin in the control of food intake” “Coupling D-Phenylalanine and N-Acetyl-L-Cysteine (NAC) as a Novel Therapeutic Modality” “Tyrosine, phenylalanine, and catecholamine synthesis and function in the brain”
L-Tyrosine
L-Tyrosine is a conditionally essential amino acid that serves as the direct precursor to three metabolically critical compounds: the catecholamine neurotransmitters dopamine and norepinephrine, and the thyroid hormones T3 and T4. Research published in the European Journal of Clinical Nutrition (2009) documented that tyrosine, combined with other sympathomimetics including catechins, increases thermogenesis in brown adipose tissue and decreases food intake in a synergistic fashion. The inclusion of both L-Tyrosine and DL-Phenylalanine in HerbaLean Ultra II creates a complementary amino acid system that supports norepinephrine-mediated thermogenesis, thyroid hormone production, and satiety signaling simultaneously. “Tyrosine, phenylalanine, and catecholamine synthesis and function in the brain” “The effect of caffeine, green tea and tyrosine on thermogenesis and energy intake”
Cinnamon Bark PE (30%)
Cinnamon bark extract has been consistently studied for its ability to support healthy blood glucose regulation. A meta-analysis published in the Journal of Medicinal Food (PMID 21480806) analyzing eight clinical studies found that cinnamon intake — whether as whole cinnamon or cinnamon extract — resulted in a statistically significant lowering of fasting blood glucose (-0.49 ± 0.2 mmol/L; P=0.025). A comprehensive umbrella meta-analysis published in PMC (2023) synthesizing previous meta-analyses confirmed glycemic-lowering effects of cinnamon across multiple population types. The mechanism, documented in multiple studies, involves cinnamon’s polyphenol compounds (particularly Type-A procyanidins) activating insulin receptor kinase and enhancing GLUT4 translocation — effectively mimicking some actions of insulin at the cellular level. “Cinnamon Intake Lowers Fasting Blood Glucose — Meta-Analysis of 8 Clinical Studies” “Effect of Cinnamon Supplementation on Glycemic Control — Umbrella Meta-Analysis” “Cinnamon Extract Lowers Glucose, Insulin, and Cholesterol in People with Pre-Diabetes” “Cinnamon: Potential Role in the Prevention of Insulin Resistance, Metabolic Syndrome, and Type 2 Diabetes”
Clove Powder (Buds), Organic
Clove’s primary bioactive compound, eugenol, has been studied for its anti-obesity and metabolic effects. Research published in Molecular Nutrition & Food Research (PMID 36029106) found that eugenol supplementation in high-fat diet-fed mice significantly reduced final body weight, body weight gain, adipocyte size, visceral fat-pad weight, and fasting blood glucose, while also favorably modulating gut microbiota composition. A separate study published in Food Function (2022) confirmed eugenol’s beneficial effects on gut microbiota and metabolic health markers in high-fat diet models. Additionally, research published in the RSC journal Food & Function found that clove extract functions as a natural fatty acid synthase (FASN) inhibitor — directly inhibiting the enzyme responsible for de novo lipogenesis (new fat synthesis) — and prevented obesity development in a high-fat diet mouse model. “Eugenol Attenuates Adiposity, Reduces Visceral Fat, and Modulates Gut Microbiota” “Clove Extract Functions as a Natural Fatty Acid Synthase (FASN) Inhibitor and Prevents Obesity” “Beneficial effects of eugenol supplementation on gut microbiota and hepatic steatosis in high-fat-fed mice”
Allspice
Allspice (Pimenta dioica) contains a complex polyphenol profile including eugenol, quercetin, ericifolin, and gallic acid derivatives. Research has documented anti-inflammatory, antioxidant, and carbohydrate-metabolizing enzyme inhibitory properties. Ericifolin, a primary polyphenol in allspice, has been studied for its inhibitory effects on α-glucosidase — the intestinal enzyme that breaks down complex carbohydrates into absorbable sugars — providing a mechanism for slowing postprandial glucose absorption. Allspice’s polyphenol complex complements the formula’s cinnamon and berberine for multi-pathway blood glucose support. “Medicinal Properties of the Jamaican Pepper Plant Pimenta dioica and Allspice” “α-Glucosidase inhibition by flavonoids: an in vitro and in silico structure–activity relationship study” “Possible effects of dietary polyphenols on sugar absorption and digestion”
Cranberry Fruit Extract (4:1)
Cranberry polyphenols — particularly proanthocyanidins (PACs) and anthocyanins — have been studied for their effects on metabolic syndrome and gut-metabolic interactions. A study published in Gut (PMC 5699918, 2017) documented that a polyphenol-rich cranberry extract reversed insulin resistance and hepatic steatosis in diet-induced obese mice independently of body weight loss, associated with upregulation of fat-breakdown genes, reduction of pro-inflammatory liver genes, and normalization of the gut microbiota including Akkermansia muciniphila. A 2022 review published in PMC (9854780) titled “Cranberry Proanthocyanidins as a Therapeutic Strategy to Prevent Metabolic Syndrome” comprehensively reviewed the mechanisms by which cranberry polyphenols address the multiple components of metabolic syndrome. A 2025 study published in PMC (12436610) directly confirmed that cranberry improves metabolic syndrome-related organ dysfunction. The 4:1 extract concentration in HerbaLean Ultra II provides a meaningful polyphenolic dose. “Polyphenol-Rich Cranberry Extract Reverses Insulin Resistance and Hepatic Steatosis” “Cranberry Proanthocyanidins as a Therapeutic Strategy to Prevent Metabolic Syndrome — Comprehensive Review” “Cranberry Improves Metabolic Syndrome-Related Organ Dysfunction”
Summary
Consumer Summary: HerbaLean Ultra II in Plain Language
For the health-conscious consumer:
HerbaLean Ultra II is not a “magic pill” — no ethical supplement company would claim that. What it is, is a comprehensive daily supplement formulated to support your body’s own weight management systems from multiple angles simultaneously.
The reformulated HerbaLean Ultra II brings together the most extensively studied natural metabolic support ingredients available:
•Thermogenic support: Green Tea EGCG (which prolongs the fat-burning effect of norepinephrine), Fucoxanthin (which induces white adipose tissue to burn fat rather than store it), and CoQ10 (which powers the mitochondrial machinery that converts fat into energy)
•Blood sugar and insulin pathway support: Berberine (which activates AMPK — the metabolic master switch), Chromium Nicotinate, Cinnamon Bark Extract, and Inositol — four complementary approaches to healthy glucose metabolism
•Fat transport and lipotropic support: L-Carnitine Tartrate (to carry fats into the mitochondria), L-Methionine, Choline, and Vitamin B6 (which together form the lipotropic triad that keeps fat moving through the liver and into the energy pathway rather than accumulating)
•Appetite and satiety support: DL-Phenylalanine (which stimulates CCK release), L-Tyrosine (which supports norepinephrine and thyroid hormone production), Apple Fiber (which slows gastric emptying), and Irvingia Gabonensis (which has been studied for leptin sensitivity and satiety signaling)
•Thyroid and metabolic rate foundation: Iodine from Brown Kelp, Bladderwrack, and Kelp — providing the nutritional foundation for thyroid hormone synthesis, the primary determinant of your basal metabolic rate
•Whole-food metabolic support: Spirulina, Clove (Organic), Allspice, and Cranberry Extract — providing bioactive polyphenols and phytonutrients that support fat metabolism, insulin sensitivity, and metabolic inflammation balance
Think of HerbaLean Ultra II as nutritional backup for the healthy diet and lifestyle choices you’re already making — because healthy weight management is about supporting your body’s own systems, not overriding them.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Why
Effective weight management involves normal metabolic rate, healthy fat oxidation, normal appetite regulation, normal blood glucose balance, and healthy thyroid function. Comprehensive nutritional support for these interconnected normal processes — through thermogenic catechins, lipotropic amino acids and cofactors, AMPK-activating botanicals, iodine for thyroid support, and fiber for gut-metabolic health — provides a more complete approach to everyday weight management than single-pathway supplementation can deliver.
What
HerbaLean Ultra II is a dietary supplement providing Green Tea Extract (95% Polyphenols, 45% EGCG), Irvingia Gabonensis Seed Extract, Cissus Quadrangularis, L-Carnitine Tartrate, Berberine HCl, Medium Chain Triglycerides, Fucoxanthin, Inositol, CoQ10, L-Methionine, DL-Phenylalanine, L-Tyrosine, Vitamin C, Vitamin D, Vitamin B6, Choline, Chromium Nicotinate, Iodine from Brown Kelp, Apple Fiber, Bladderwrack, Brown Kelp, Spirulina, Cinnamon Bark Extract, Clove Powder, Allspice, and Cranberry Fruit Extract to support normal metabolic rate, healthy fat metabolism, normal blood glucose handling, and normal weight management physiology.
How
HerbaLean Ultra II supports normal weight management through multiple complementary mechanisms: Green Tea EGCG and Fucoxanthin for normal thermogenesis and fat oxidation; Irvingia Gabonensis, Cissus Quadrangularis, and DL-Phenylalanine for normal appetite and satiety signaling; Berberine, Chromium, Inositol, and Cinnamon for normal blood glucose handling and insulin sensitivity; L-Carnitine, L-Methionine, Choline, Vitamin B6, Vitamin C, and MCTs for normal fat transport, lipotropic liver function, and cellular energy production; Iodine from kelp and bladderwrack for normal thyroid function and metabolic rate; and Apple Fiber, Spirulina, Clove, Allspice, and Cranberry for microbiome-supportive and metabolic polyphenol coverage — all designed to complement a calorie-appropriate diet and regular physical activity program.
Q&A
1. What is HerbaLean Ultra II? A dietary supplement combining Green Tea EGCG, Irvingia Gabonensis, Cissus Quadrangularis, L-Carnitine, Berberine, MCTs, Fucoxanthin, Inositol, CoQ10, lipotropic amino acids (L-Methionine, Choline, Vitamin B6), thermogenic amino acids (L-Tyrosine, DL-Phenylalanine), and a comprehensive botanical and micronutrient complex for daily nutritional support of normal metabolic rate, healthy fat metabolism, normal blood glucose handling, and normal weight management physiology alongside diet and exercise.
2. Is HerbaLean Ultra II a substitute for diet and exercise? No. It is designed to complement — not replace — a balanced, calorie-appropriate diet and regular physical activity. The formula’s ingredients work by supporting your body’s own normal weight management physiology, not by overriding it.
3. How does Green Tea EGCG support normal weight management? EGCG supports normal thermogenesis by inhibiting the enzyme that breaks down norepinephrine, thereby prolonging the sympathetic nervous system’s normal fat-burning signals. It also supports normal fat oxidation as part of an active lifestyle.
4. What is Cissus Quadrangularis and what makes it notable? Cissus quadrangularis is an extensively studied botanical that has shown significant effects on weight, waist circumference, and metabolic syndrome markers in multiple clinical trials. Recent research also suggests it may support GLP-1 pathway activity — placing it among the most mechanistically interesting natural weight management ingredients available.
5. What does Irvingia Gabonensis contribute? Irvingia Gabonensis Seed Extract has been studied for supporting normal fat cell metabolism, healthy leptin sensitivity, and favorable blood lipid and glucose markers as part of a structured weight management program.
6. What is the role of Berberine? Berberine activates AMPK — the body’s metabolic master switch — supporting normal fat oxidation, healthy blood glucose handling, and normal lipid metabolism. It is one of the most comprehensively studied natural metabolic regulators.
7. Why does HerbaLean Ultra II include L-Carnitine, L-Methionine, and Choline together? These three ingredients form a lipotropic triad that supports the body’s normal fat transport and processing pathway. L-Carnitine carries fatty acids into the mitochondria for energy production. L-Methionine and Choline support normal hepatic fat export and prevent fat accumulation in the liver — keeping the liver functioning efficiently as the body’s primary fat-processing organ.
8. What is the role of Vitamin B6 and Vitamin C in a weight management formula? Both are essential cofactors for carnitine biosynthesis — meaning your body’s ability to produce L-Carnitine depends on having adequate B6 and Vitamin C. They are foundational nutrients for the fat transport pathway that is central to HerbaLean Ultra II’s metabolic support.
9. Why is Fucoxanthin included? Fucoxanthin induces UCP1 (uncoupling protein 1) expression in white adipose tissue — promoting energy dissipation through heat rather than fat storage. This thermogenic mechanism is complementary to Green Tea EGCG’s sympathetic thermogenesis pathway.
10. What does Inositol contribute? Inositol supports insulin signaling and healthy blood glucose metabolism, complementing Berberine, Chromium, and Cinnamon in the formula’s comprehensive insulin pathway support complex.
11. Why is CoQ10 included in a weight management formula? CoQ10 is an essential component of the mitochondrial electron transport chain — the cellular machinery that converts fat and glucose into energy. Supporting mitochondrial function with CoQ10 provides the energy infrastructure that fat oxidation depends on.
12. What is DL-Phenylalanine and how does it support satiety? DL-Phenylalanine stimulates cholecystokinin (CCK) release — a satiety hormone that signals fullness — and inhibits the enzyme that breaks down natural endorphins, supporting normal appetite regulation and reducing reward-driven eating patterns.
13. Why does the formula include iodine from kelp and bladderwrack? Iodine is the essential mineral required for thyroid hormone synthesis. The thyroid gland is the primary regulator of basal metabolic rate. Including iodine from natural kelp and bladderwrack sources supports the thyroid nutritional foundation that underpins a healthy metabolism.
14. What role does Apple Fiber play? Apple Fiber provides a soluble fiber component that slows gastric emptying, moderates postprandial glucose responses, feeds beneficial gut bacteria, and supports feelings of fullness — addressing the gut-metabolic connection that is increasingly recognized as central to healthy weight management.
15. Can people taking medications for blood glucose management use HerbaLean Ultra II? Those taking medications affecting blood glucose or insulin function must consult their healthcare provider before use, given the formula’s multiple ingredients that support normal blood glucose handling.
16. How long does it take to see results? Dietary supplements support normal physiological processes that work gradually alongside sustained diet and lifestyle changes. HerbaLean Ultra II is designed for consistent long-term use as part of a comprehensive weight management approach.
17. What are the roles of Spirulina, Clove, Allspice, and Cranberry in this formula? These whole-food botanicals provide complementary polyphenols and bioactive compounds. Spirulina supports appetite regulation and metabolic health; Clove (organic) provides eugenol, a natural FASN (fatty acid synthase) inhibitor; Allspice contributes carbohydrate-metabolizing enzyme inhibitory properties; Cranberry provides proanthocyanidins studied for metabolic syndrome support and gut microbiome health.
18. Is HerbaLean Ultra II appropriate for older adults? Adults of any age may consider it; older adults with complex health backgrounds or multiple medications should consult their healthcare provider before use.
19. Can HerbaLean Ultra II be used alongside Blood Sugar Support? These products support complementary aspects of metabolic wellness. Individuals interested in combining them should consult their healthcare provider to review potential overlap in blood glucose support ingredients.
20. How should HerbaLean Ultra II be stored? Store in a cool, dry place away from moisture and direct sunlight. Keep the bottle tightly closed to preserve the potency of botanical extracts and thermogenic compounds.
