Isopure Whey Protein Isolate supplement bottle
Isopure

Whey Protein Isolate

What We Researched
1 active ingredient analyzed · 1 inactive ingredient decoded · 1 brand certification checked · Last updated: Mar 2026
66
Product Score Fair
67
Brand Score Fair

Product Analysis

Transparency Very Poor

Supplement Facts

IngredientAmount% DV
Whey Protein Isolate (MILK) — —
Bioavailability Excellent

Absorption Rating

  • Whey Protein Isolate (MILK) Good
Other Ingredients Excellent

Fillers & Additives

  • Lecithin (Soy)
Efficacy N/A

Dosage Analysis

Dosage data not available for assessment.

Supplement Facts

Ingredient Amount % Daily Value
Whey Protein Isolate (MILK)

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Lecithin (Soy) Generally_safe

It is used as an emulsifier.

Brand Trust Report
Isopure

Founded 1998 · Downers Grove, IL, United States · 26 products · theisopurecompany.com/

Certifications

1 certification
Informed Sport Verified Source

Transparency

3 claims
Third Party Testing Claim — Claimed
In House Testing — Verified

Violation History

3 incidents
Prop 65 Lead2025-04-11Source
Lawsuit Deceptive packaging with approximately 30% empty space ('slack-fill').2015Source
Lawsuit Misrepresenting the amount of whey protein in products ('protein-spiking').2014Source
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Frequently Asked Questions
Is Isopure Whey Protein Isolate a good supplement?

Isopure Whey Protein Isolate received a product quality score of 66/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 1 active ingredients Of the 1 inactive ingredients, 0 are rated safe and 0 are flagged for review. The manufacturer, Isopure, holds a brand trust score of 67/100 with 1 verified certifications including Informed Sport.

What are the ingredients in Isopure Whey Protein Isolate?

Isopure Whey Protein Isolate contains 1 active ingredients: Whey Protein Isolate (MILK). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Isopure Whey Protein Isolate safe to take?

Isopure Whey Protein Isolate 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 Isopure a trustworthy supplement brand?

Isopure receives a brand trust score of 67/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1998 and headquartered in Downers Grove, IL, United States, the company offers 26 products in their lineup. They hold 1 verified certifications including Informed Sport. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Isopure has 3 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.