Isopure Whey Protein Isolate Natural Vanilla Flavor supplement bottle
Isopure

Whey Protein Isolate Natural Vanilla Flavor

What We Researched
22 active ingredients analyzed · 24 inactive ingredients decoded · 1 brand certification checked · 2 retailers compared · Last updated: Mar 2026
68
Product Score Fair
67
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Total Carbohydrates 4 g 1%
Calcium 150 mg 10%
Potassium 200 mg 4%
Vitamin A 100 mcg 10%
Vitamin C 7 mg 8%
Vitamin E 2 mg 15%
Vitamin K 10 mcg 8%
Thiamine 0.2 mg 15%
Riboflavin 0.2 mg 15%
Vitamin B6 0.2 mg 10%
Vitamin B12 2.6 mcg 110%
Pantothenic Acid 1 mg 20%
Phosphorus 90 mg 8%
Magnesium 60 mg 15%
Zinc 2 mg 20%
Copper 0.3 mg 35%
Chloride 180 mg 8%
Bioavailability Very Good

Absorption Rating

  • Total Carbohydrates Fair
  • Calcium Good
  • Potassium Good
  • Vitamin A Good
  • Vitamin C Fair
  • Vitamin E Good
  • Vitamin K Good
  • Thiamine Good
  • Riboflavin Good
  • Vitamin B6 Fair
  • Vitamin B12 Fair
  • Pantothenic Acid Good
  • Phosphorus Good
  • Magnesium Good
  • Zinc Fair
  • Copper Fair
  • Chloride Good
Other Ingredients Very Good

Fillers & Additives

  • Whey Protein Isolate
  • Cane Sugar
  • Natural Flavor
  • Soy Lecithin
  • Potassium Chloride
  • Calcium Citrate Tetrahydrate
  • Dicalcium Phosphate Anhydrous
  • Magnesium Oxide
  • Monk Fruit Extract
  • Acerola powder
  • Citric Acid Anhydrous
  • Sodium Chloride
  • Zinc Sulfate Monohydrate
  • Menaquinone
  • Stearic Acid
  • Vitamin E Succinate
  • Inositol
  • Beta-Carotene
  • Calcium D-Pantothenate
  • Pyridoxine Hydrochloride
  • Cupric Oxide Medium
  • Thiamine Hydrochloride
  • Riboflavin
  • Cyanocobalamin
Efficacy Very Poor

Dosage Analysis

  • Calcium 150 mg Under-dosed
  • Potassium 200 mg Under-dosed
  • Vitamin A 100 mcg Under-dosed
  • Vitamin C 7 mg Under-dosed
  • Vitamin E 2 mg Under-dosed
  • Vitamin K 10 mcg Under-dosed
  • Thiamine 0.2 mg Under-dosed
  • Riboflavin 0.2 mg Under-dosed
  • Vitamin B6 0.2 mg Under-dosed
  • Vitamin B12 2.6 mcg Effective
  • Pantothenic Acid 1 mg Under-dosed
  • Phosphorus 90 mg Under-dosed
  • Magnesium 60 mg Under-dosed
  • Zinc 2 mg Under-dosed
  • Copper 0.3 mg Under-dosed
  • Chloride 180 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Calories 120 kcal
Total Fat 0 g 0%
Cholesterol 10 mg 3%
Sodium 240 mg 10%
Total Carbohydrates 4 g 1%
Protein 25 g 50%
Calcium 150 mg 10%
Potassium 200 mg 4%
Vitamin A 100 mcg 10%
Vitamin C 7 mg 8%
Vitamin E 2 mg 15%
Vitamin K 10 mcg 8%
Thiamine 0.2 mg 15%
Riboflavin 0.2 mg 15%
Vitamin B6 0.2 mg 10%
Vitamin B12 2.6 mcg 110%
Pantothenic Acid 1 mg 20%
Phosphorus 90 mg 8%
Magnesium 60 mg 15%
Zinc 2 mg 20%
Copper 0.3 mg 35%
Chloride 180 mg 8%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Whey Protein Isolate Generally_safe

It is used as a protein source and to add bulk.

Cane Sugar Generally_safe

It is used as a sweetener.

Natural Flavor Safe

Improves taste of chewable, gummy, or liquid supplements.

Soy Lecithin Safe

Helps blend oil and water-based ingredients. Common allergen.

Potassium Chloride Safe

It is used to provide potassium, an essential mineral.

Calcium Citrate Tetrahydrate Unknown
Dicalcium Phosphate Anhydrous Unknown
Magnesium Oxide Generally_safe

It is used to provide magnesium, an essential mineral.

Monk Fruit Extract Safe

Provides sweetness without calories or blood sugar impact.

Acerola powder Unknown
Citric Acid Anhydrous Unknown
Sodium Chloride Safe

Provides sodium, stabilizes formulations.

Zinc Sulfate Monohydrate Unknown
Menaquinone Unknown
Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Vitamin E Succinate Unknown
Inositol Safe

It is used for its potential benefits related to cell signaling and mental health.

Beta-Carotene Safe

Provides natural color and additional nutritional value.

Calcium D-Pantothenate Unknown
Pyridoxine Hydrochloride Safe

It is used as a source of vitamin B6.

Cupric Oxide Caution

It is used as a source of copper, an essential mineral.

Thiamine Hydrochloride Safe

It is included as a source of vitamin B1.

Riboflavin Safe

It is used as a source of vitamin B2.

Cyanocobalamin Safe

It is used as a source of vitamin B12.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$88$87$86$85$84 $85.99
Target

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

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
Related Supplements
Frequently Asked Questions
Is Isopure Whey Protein Isolate Natural Vanilla Flavor a good supplement?

Isopure Whey Protein Isolate Natural Vanilla Flavor received a product quality score of 68/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 22 active ingredients with 40 servings per container. Of the 24 inactive ingredients, 12 are rated safe and 1 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 Natural Vanilla Flavor?

Isopure Whey Protein Isolate Natural Vanilla Flavor contains 22 active ingredients: Calories (120 kcal), Total Fat (0 g), Cholesterol (10 mg), Sodium (240 mg), Total Carbohydrates (4 g), Protein (25 g), and 16 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Isopure Whey Protein Isolate Natural Vanilla Flavor safe to take?

Isopure Whey Protein Isolate Natural Vanilla Flavor has been analyzed for ingredient safety across all its components. Of 24 inactive ingredients, 12 are rated safe. 1 ingredient is flagged for review: Cupric Oxide. '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 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.