Irwin Naturals Sleep Fit + PM Fat Burner, 60 Liquid Softgels supplement bottle
Irwin Naturals

Sleep Fit + PM Fat Burner, 60 Liquid Softgels

What We Researched
16 active ingredients analyzed · 10 inactive ingredients decoded · 1 brand certification checked · 3 retailers compared · Last updated: Mar 2026
71
Product Score Fair
78
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin B6 (as Pyridoxine Hydrochloride) 10 mg 588%
Magnesium (as Magnesium Glycinate) 100 mg 24%
Chromium (as Chromium Picolinate) 400 mcg 1,143%
Flaxseed Oil (seed) 975 mg
Tributyrin 500 mg
Glycine (as Magnesium Glycinate) 282 mg
L-Theanine 200 mg
Ginger Extract (5% gingerols, 7.5 mg) (rhizome) 150 mg
Gymnema extract (20:1) (leaf) 130 mg
5-Hydroxytryptophan (5-HTP) (from Griffonia simplicifolia extract) (seed) 50 mg
ThermoGP™ Grains of Paradise extract (seed) 40 mg
Melatonin 3 mg
BioPerine ComplexBioPerine® Black Pepper extract (95% piperine) (fruit), Ginger extract (5% gingerols) (rhizome) 6 mg
Bioavailability Very Good

Absorption Rating

  • Vitamin B6 (as Pyridoxine Hydrochloride) Fair
  • Magnesium (as Magnesium Glycinate) Good
  • Chromium (as Chromium Picolinate) Good
  • Flaxseed Oil (seed) Good
  • Tributyrin Good
  • Glycine (as Magnesium Glycinate) Good
  • L-Theanine Good
  • Ginger Extract (5% gingerols, 7.5 mg) (rhizome) Good
  • Gymnema extract (20:1) (leaf) Fair
  • 5-Hydroxytryptophan (5-HTP) (from Griffonia simplicifolia extract) (seed) Good
  • ThermoGP™ Grains of Paradise extract (seed) Fair
  • Melatonin Fair
  • BioPerine ComplexBioPerine® Black Pepper extract (95% piperine) (fruit), Ginger extract (5% gingerols) (rhizome) Good
Other Ingredients Good

Fillers & Additives

  • Gelatin
  • Purified Water
  • Glycerin
  • Beeswax
  • Sunflower Lecithin
  • Annatto (Color)
  • Maltodextrin
  • Turmeric (Color)
  • Silicon Dioxide
  • Titanium Dioxide (Color) And Sodium Copper Chlorophyllin (Color) High
Efficacy Fair

Dosage Analysis

  • Vitamin B6 (as Pyridoxine Hydrochloride) 10 mg Effective
  • Magnesium (as Magnesium Glycinate) 100 mg Under-dosed
  • Chromium (as Chromium Picolinate) 400 mcg Effective
  • Flaxseed Oil (seed) 975 mg Under-dosed
  • Tributyrin 500 mg Effective
  • Glycine (as Magnesium Glycinate) 282 mg Under-dosed
  • L-Theanine 200 mg Effective
  • Ginger Extract (5% gingerols, 7.5 mg) (rhizome) 150 mg Under-dosed
  • Gymnema extract (20:1) (leaf) 130 mg Under-dosed
  • 5-Hydroxytryptophan (5-HTP) (from Griffonia simplicifolia extract) (seed) 50 mg Under-dosed
  • ThermoGP™ Grains of Paradise extract (seed) 40 mg Effective
  • Melatonin 3 mg Effective
  • BioPerine ComplexBioPerine® Black Pepper extract (95% piperine) (fruit), Ginger extract (5% gingerols) (rhizome) 6 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Calories 20
Total Fat 1 g 1%**
Protein 2 g
Vitamin B6 (as Pyridoxine Hydrochloride) 10 mg 588%
Magnesium (as Magnesium Glycinate) 100 mg 24%
Chromium (as Chromium Picolinate) 400 mcg 1,143%
Flaxseed Oil (seed) 975 mg
Tributyrin 500 mg
Glycine (as Magnesium Glycinate) 282 mg
L-Theanine 200 mg
Ginger Extract (5% gingerols, 7.5 mg) (rhizome) 150 mg
Gymnema extract (20:1) (leaf) 130 mg
5-Hydroxytryptophan (5-HTP) (from Griffonia simplicifolia extract) (seed) 50 mg
ThermoGP™ Grains of Paradise extract (seed) 40 mg
Melatonin 3 mg
BioPerine ComplexBioPerine® Black Pepper extract (95% piperine) (fruit), Ginger extract (5% gingerols) (rhizome) 6 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Purified Water Safe

Dissolves and carries water-soluble ingredients.

Glycerin Safe

Retains moisture and helps dissolve ingredients in softgels and liquids.

Beeswax Safe

Used as a coating and to help form softgel capsules.

Sunflower Lecithin Safe

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

Annatto (Color) Generally_safe

It is used as a natural food coloring to provide a yellow or orange hue.

Maltodextrin Generally_safe

Helps carry and stabilize active ingredients. Provides bulk.

Turmeric (Color) Safe

It is used to add yellow color to supplements.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Titanium Dioxide (Color) And Sodium Copper Chlorophyllin (Color) Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$30$28$26$25$23 Mar 12 $28.00$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 Sleep Fit + PM Fat Burner, 60 Liquid Softgels a good supplement?

Irwin Naturals Sleep Fit + PM Fat Burner, 60 Liquid Softgels received a product quality score of 71/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 16 active ingredients with 20 servings per container. Of the 10 inactive ingredients, 7 are rated safe and 0 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 Sleep Fit + PM Fat Burner, 60 Liquid Softgels?

Irwin Naturals Sleep Fit + PM Fat Burner, 60 Liquid Softgels contains 16 active ingredients: Calories (20), Total Fat (1 g), Protein (2 g), Vitamin B6 (as Pyridoxine Hydrochloride) (10 mg), Magnesium (as Magnesium Glycinate) (100 mg), Chromium (as Chromium Picolinate) (400 mcg), and 10 more. Notable high-dose ingredients include Vitamin B6 at 588% DV, Chromium at 1,143% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Irwin Naturals Sleep Fit + PM Fat Burner, 60 Liquid Softgels safe to take?

Irwin Naturals Sleep Fit + PM Fat Burner, 60 Liquid Softgels has been analyzed for ingredient safety across all its components. 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.