Rule One Proteins Lean™, Non-Stim Weight Management, Pineapple Passionfruit, 6.35 oz (180 g) supplement bottle
Rule One Proteins

Lean™, Non-Stim Weight Management, Pineapple Passionfruit, 6.35 oz (180 g)

What We Researched
14 active ingredients analyzed · 9 inactive ingredients decoded · 2 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
79
Product Score Fair
84
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin B6 1.7 mg 100%
Vitamin B12 2.4 mcg 100%
L-Carnitine Tartrate 1.5 g
Taurine 800 mg
Apple Cider Vinegar Powder 500 mg
L-Tyrosine 500 mg
Garcinia cambogia Fruit Extract 300 mg
Coconut Fruit Water Powder 250 mg
Decaffeinated Green Tea Leaf Extract 100 mg
Capsicum Fruit Extract (Capsimax®) 25 mg
Grains of Paradise (Aframomum melegueta) Seed Extract 20 mg
Black Pepper Fruit Extract (BioPerine®) 5 mg
Bioavailability Good

Absorption Rating

  • Vitamin B6 Fair
  • Vitamin B12 Fair
  • L-Carnitine Tartrate Poor
  • Taurine Good
  • Apple Cider Vinegar Powder Fair
  • L-Tyrosine Good
  • Garcinia cambogia Fruit Extract Fair
  • Coconut Fruit Water Powder Fair
  • Decaffeinated Green Tea Leaf Extract Good
  • Capsicum Fruit Extract (Capsimax®) Fair
  • Grains of Paradise (Aframomum melegueta) Seed Extract Good
  • Black Pepper Fruit Extract (BioPerine®) Good
Other Ingredients Very Good

Fillers & Additives

  • Inulin
  • Natural & Artificial Flavors
  • Citric Acid
  • Malic Acid
  • Silicon Dioxide
  • Calcium Silicate
  • Sucralose
  • Acesulfame Potassium
  • FD&C Yellow #5 Medium
Efficacy Good

Dosage Analysis

  • Vitamin B6 1.7 mg Effective
  • Vitamin B12 2.4 mcg Effective
  • L-Carnitine Tartrate 1.5 g Effective
  • Taurine 800 mg Effective
  • Apple Cider Vinegar Powder 500 mg High
  • L-Tyrosine 500 mg Effective
  • Garcinia cambogia Fruit Extract 300 mg Under-dosed
  • Coconut Fruit Water Powder 250 mg High
  • Decaffeinated Green Tea Leaf Extract 100 mg Under-dosed
  • Capsicum Fruit Extract (Capsimax®) 25 mg High
  • Grains of Paradise (Aframomum melegueta) Seed Extract 20 mg Under-dosed
  • Black Pepper Fruit Extract (BioPerine®) 5 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Calories 20
Total Carbohydrate 2 g <1%*
Vitamin B6 1.7 mg 100%
Vitamin B12 2.4 mcg 100%
L-Carnitine Tartrate 1.5 g
Taurine 800 mg
Apple Cider Vinegar Powder 500 mg
L-Tyrosine 500 mg
Garcinia cambogia Fruit Extract 300 mg
Coconut Fruit Water Powder 250 mg
Decaffeinated Green Tea Leaf Extract 100 mg
Capsicum Fruit Extract (Capsimax®) 25 mg
Grains of Paradise (Aframomum melegueta) Seed Extract 20 mg
Black Pepper Fruit Extract (BioPerine®) 5 mg

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Inulin Safe

It is used as a prebiotic fiber and to add bulk to supplements.

Natural & Artificial Flavors Generally_safe

It is used to improve the taste of the product.

Citric Acid Safe

Adds tartness and acts as a natural preservative. Also aids in ingredient stability.

Malic Acid Safe

Adds tartness and enhances fruit flavors in gummies and chewables.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Calcium Silicate Safe

Prevents ingredient clumping during manufacturing.

Sucralose Generally_safe

Adds sweetness to chewables, gummies, and powdered supplements without calories.

Acesulfame Potassium Generally_safe

It is used to provide sweetness without adding calories.

FD&C Yellow #5 Caution

It is added to supplements to provide color.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$17$16$15$14$13 Mar 12 $15.00
iHerb

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

Brand Trust Report
Rule One Proteins

Founded 2014 · Aurora, IL, United States · 62 products · ruleoneproteins.com

Certifications

2 certifications
Informed Sport Verified Source
Nsf Gmp Verified Source

Transparency

4 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source
In House Testing — Verified Source

Violation History

1 incident
Prop 65 Lead and Cadmium2019-01-07Source
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Frequently Asked Questions
Is Rule One Proteins Lean™, Non-Stim Weight Management a good supplement?

Rule One Proteins Lean™, Non-Stim Weight Management, Pineapple Passionfruit, 6.35 oz (180 g) received a product quality score of 79/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 14 active ingredients with 30 servings per container. Of the 9 inactive ingredients, 5 are rated safe and 1 are flagged for review. The manufacturer, Rule One Proteins, holds a brand trust score of 84/100 with 2 verified certifications including Informed Sport, Nsf Gmp.

What are the ingredients in Rule One Proteins Lean™, Non-Stim Weight Management?

Rule One Proteins Lean™, Non-Stim Weight Management contains 14 active ingredients: Calories (20), Total Carbohydrate (2 g), Vitamin B6 (1.7 mg), Vitamin B12 (2.4 mcg), L-Carnitine Tartrate (1.5 g), Taurine (800 mg), and 8 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Rule One Proteins Lean™, Non-Stim Weight Management safe to take?

Rule One Proteins Lean™, Non-Stim Weight Management, Pineapple Passionfruit, 6.35 oz (180 g) has been analyzed for ingredient safety across all its components. Of 9 inactive ingredients, 5 are rated safe. 1 ingredient is flagged for review: FD&C Yellow #5. '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 Rule One Proteins a trustworthy supplement brand?

Rule One Proteins receives a brand trust score of 84/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2014 and headquartered in Aurora, IL, United States, the company offers 62 products in their lineup. They hold 2 verified certifications including Informed Sport, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Rule One Proteins has 1 historical regulatory incident 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.