Isopure Whey Protein Isolate supplement bottle

Whey Protein Isolate Review

Q: 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.

Q: Is Isopure a trustworthy supplement brand?

Isopure receives a brand trust score of 69/100 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 62 products in their lineup. Note: Isopure has 3 historical regulatory incidents on record, which are factored into the trust score.

What We Researched

GoodSupp analyzed 1 active ingredient and 1 inactive ingredient listed for Isopure Whey Protein Isolate. Its current algorithmic Product Score is 66/100. The score evaluates available label transparency, ingredient forms, dosing data, and additives; it does not establish clinical effectiveness.

1 active ingredient analyzed · 1 inactive ingredient decoded · 1 brand certification checked · Source: OPENFOODFACTS · Label review date: Not available in source data

Method: GoodSupp compares the recorded supplement label, ingredient forms, quantities and additives. Brand records are assessed separately. Product scores describe the available data and do not replace laboratory testing of this product or batch.

Product Score Fair

Brand Score Fair

Two independent scores — the product and the brand behind it, never blended into one number. See our methodology.

Product Analysis

Transparency Very Poor

Supplement Facts

Ingredient	Amount	% 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

Certifications

1 certification

Informed Sport Source available Primary evidence

Transparency

3 claims

Third Party Testing Claim — Claimed Brand claim; evidence unavailable

In House Testing — Claimed Unverifiable Brand claim; evidence unavailable

Violation History

3 incidents

Prop 65 Lead2025-04-11 Source available Primary source

Lawsuit Deceptive packaging with approximately 30% empty space ('slack-fill').2015 Source available Primary source

Lawsuit Misrepresenting the amount of whey protein in products ('protein-spiking').2014 Source available Primary source

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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 All 1 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. The manufacturer, Isopure, holds a brand trust score of 69/100.

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?

GoodSupp reviewed the inactive-ingredient data available for Isopure Whey Protein Isolate. All 1 inactive ingredients — including capsule materials, fillers, and binders — are currently classified as safe in GoodSupp's ingredient reference data. This label analysis cannot determine whether the product is safe for a particular person, and source labels may change. 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 69/100 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 62 products in their lineup. 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 — read our methodology. 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.