Irwin Naturals Thermo-Burn Stubborn Fat Metabolizer™, 60 Liquid Soft-Gels supplement bottle
Irwin Naturals

Thermo-Burn Stubborn Fat Metabolizer™, 60 Liquid Soft-Gels

What We Researched
15 active ingredients analyzed · 11 inactive ingredients decoded · 1 brand certification checked · 3 retailers compared · Last updated: Mar 2026
60
Product Score Fair
78
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Total Carbohydrates 1 g <1%**
Chromium (as Chromium Picolinate) 100 mcg 286%
Flaxseed Oil 900 mg
Medium Chain Triglycerides (MCT) Oil 500 mg
Sinetrol® - Xpur (blend of Grapefruit (Citrus paradisi L.) (fruit), Guarana (Paullinia cupana Kunth) (1% caffeine, 4.5 mg) (seed), Sweet Orange and Blood Orange (Citrus sinensis L. Osbeck) (fruit) extracts) 450 mg
Cayenne powder (fruit) 150 mg
Ginger extract (5% gingerols, 7.5 mg) (rhizome) 150 mg
Cinnamon (Cassia) (Cinnamomum aromaticum) extract (4:1) (bark) 125 mg
Green Tea extract (50% EGCG, 50 mg) (leaf) 100 mg
Turmeric powder (root) 100 mg
BioPerine ComplexBioPerine® Black Pepper extract (95% piperine) (fruit), Ginger extract (5% gingerols) (rhizome) 3 mg
Bioavailability Good

Absorption Rating

  • Total Carbohydrates Fair
  • Chromium (as Chromium Picolinate) Good
  • Flaxseed Oil Good
  • Medium Chain Triglycerides (MCT) Oil Good
  • Sinetrol® - Xpur (blend of Grapefruit (Citrus paradisi L.) (fruit), Guarana (Paullinia cupana Kunth) (1% caffeine, 4.5 mg) (seed), Sweet Orange and Blood Orange (Citrus sinensis L. Osbeck) (fruit) extracts) Fair
  • Cayenne powder (fruit) Fair
  • Ginger extract (5% gingerols, 7.5 mg) (rhizome) Good
  • Cinnamon (Cassia) (Cinnamomum aromaticum) extract (4:1) (bark) Fair
  • Green Tea extract (50% EGCG, 50 mg) (leaf) Good
  • Turmeric powder (root) Poor
  • BioPerine ComplexBioPerine® Black Pepper extract (95% piperine) (fruit), Ginger extract (5% gingerols) (rhizome) Good
Other Ingredients Good

Fillers & Additives

  • Gelatin
  • Water
  • Purified
  • Glycerin
  • Beeswax
  • Maltodextrin
  • Sunflower Lecithin
  • Titanium Dioxide High
  • Silicon Dioxide
  • Caramel
  • Red Cabbage extract
Efficacy Very Poor

Dosage Analysis

  • Chromium (as Chromium Picolinate) 100 mcg Effective
  • Flaxseed Oil 900 mg Under-dosed
  • Medium Chain Triglycerides (MCT) Oil 500 mg Under-dosed
  • Cayenne powder (fruit) 150 mg High
  • Ginger extract (5% gingerols, 7.5 mg) (rhizome) 150 mg Under-dosed
  • Cinnamon (Cassia) (Cinnamomum aromaticum) extract (4:1) (bark) 125 mg Under-dosed
  • Green Tea extract (50% EGCG, 50 mg) (leaf) 100 mg Under-dosed
  • Turmeric powder (root) 100 mg Under-dosed
  • BioPerine ComplexBioPerine® Black Pepper extract (95% piperine) (fruit), Ginger extract (5% gingerols) (rhizome) 3 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 15
Total Fat 1.5 g 2%**
Saturated Fat 0.5 g 3%**
Total Carbohydrates 1 g <1%**
Protein 1 g
Chromium (as Chromium Picolinate) 100 mcg 286%
Flaxseed Oil 900 mg
Medium Chain Triglycerides (MCT) Oil 500 mg
Sinetrol® - Xpur (blend of Grapefruit (Citrus paradisi L.) (fruit), Guarana (Paullinia cupana Kunth) (1% caffeine, 4.5 mg) (seed), Sweet Orange and Blood Orange (Citrus sinensis L. Osbeck) (fruit) extracts) 450 mg
Cayenne powder (fruit) 150 mg
Ginger extract (5% gingerols, 7.5 mg) (rhizome) 150 mg
Cinnamon (Cassia) (Cinnamomum aromaticum) extract (4:1) (bark) 125 mg
Green Tea extract (50% EGCG, 50 mg) (leaf) 100 mg
Turmeric powder (root) 100 mg
BioPerine ComplexBioPerine® Black Pepper extract (95% piperine) (fruit), Ginger extract (5% gingerols) (rhizome) 3 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Water Safe

Dissolves and carries water-soluble ingredients.

Purified Unknown
Glycerin Safe

Retains moisture and helps dissolve ingredients in softgels and liquids.

Beeswax Safe

Used as a coating and to help form softgel capsules.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Sunflower Lecithin Safe

Helps mix oil and water-based ingredients. Allergen-free alternative to soy lecithin.

Titanium Dioxide Caution

Used as a whitening agent in tablet coatings and capsules.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Caramel Generally_safe

It is used to impart a brown color to supplements.

Red Cabbage extract Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$27$26$25$24$23 Mar 12 $24.99$24.99
iHerb
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Irwin Naturals

Founded 1994 · Los Angeles, California, United States · 130 products · irwinnaturals.com/

Certifications

1 certification
Nsf Gmp Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Coa Availability — Verified Source
Testing Lab Disclosure — Claimed

Violation History

2 incidents
Lawsuit Deceptively marketing products as 'natural' while they contain synthetic ingredients.2021Source
Prop 65 Lead2011-02-02Source
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Frequently Asked Questions
Is Irwin Naturals Thermo-Burn Stubborn Fat Metabolizer™, 60 Liquid Soft-Gels a good supplement?

Irwin Naturals Thermo-Burn Stubborn Fat Metabolizer™, 60 Liquid Soft-Gels received a product quality score of 60/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 15 active ingredients with 20 servings per container. Of the 11 inactive ingredients, 6 are rated safe and 1 are flagged for review. The manufacturer, Irwin Naturals, holds a brand trust score of 78/100 with 1 verified certifications including Nsf Gmp.

What are the ingredients in Irwin Naturals Thermo-Burn Stubborn Fat Metabolizer™, 60 Liquid Soft-Gels?

Irwin Naturals Thermo-Burn Stubborn Fat Metabolizer™, 60 Liquid Soft-Gels contains 15 active ingredients: Calories (15), Total Fat (1.5 g), Saturated Fat (0.5 g), Total Carbohydrates (1 g), Protein (1 g), Chromium (as Chromium Picolinate) (100 mcg), and 9 more. Notable high-dose ingredients include Chromium at 286% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Irwin Naturals Thermo-Burn Stubborn Fat Metabolizer™, 60 Liquid Soft-Gels safe to take?

Irwin Naturals Thermo-Burn Stubborn Fat Metabolizer™, 60 Liquid Soft-Gels has been analyzed for ingredient safety across all its components. Of 11 inactive ingredients, 6 are rated safe. 1 ingredient is flagged for review: Titanium Dioxide. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Irwin Naturals a trustworthy supplement brand?

Irwin Naturals receives a brand trust score of 78/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1994 and headquartered in Los Angeles, California, United States, the company offers 130 products in their lineup. They hold 1 verified certifications including Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Irwin Naturals has 2 historical regulatory incidents on record, which are factored into the trust score.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.