Optimum Nutrition Micronized Creatine supplement bottle
Optimum Nutrition

Micronized Creatine Review

What We Researched
1 active ingredient analyzed · 3 inactive ingredients decoded · 10 brand certifications checked · Last updated: Aug 2026
100
Product Score Excellent
100
Brand Score Excellent

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

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Creatine Monohydrate 5 g —
Bioavailability Excellent

Absorption Rating

  • Creatine Monohydrate Good
Other Ingredients Excellent

Fillers & Additives

  • Natural and Artificial Flavor
  • Citric Acid
  • Sucralose
Efficacy Excellent

Dosage Analysis

  • Creatine Monohydrate 5 g Effective

Supplement Facts

Ingredient Amount % Daily Value
Creatine Monohydrate 5 g

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Natural and Artificial Flavor 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.

Sucralose Generally_safe

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

Brand Trust Report
Optimum Nutrition

Founded 1986 · Downers Grove, IL, United States · 311 products · optimumnutrition.com

Certifications

10 certifications
Consumerlab Verified Source
Informed Sport Verified Source
Labdoor Verified Source
Nsf Certified For Sport Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source
Fda Gmp Inspections Verified Source
Non Gmo Project Verified Source
Nsf Gmp Verified Source
Informed Choice Verified

Transparency

5 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Claimed Source
In House Testing — Verified Source
Contains Proprietary Blend — True

Violation History

5 incidents
Prop 65 Lead2025-07-21Source
Prop 65 Lead2024-11-22Source
Recall Various nutritional and beverage products2022-07-28Source
Prop 65 Lead2017-03-10Source
Lawsuit Deceptive claims about the plant-based enzyme 'Aminogen' and its effect on protein digestion and absorption.2013Source
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Frequently Asked Questions
Is Optimum Nutrition Micronized Creatine a good supplement?

Optimum Nutrition Micronized Creatine received a product quality score of 100/100 in GoodSupp's independent analysis, placing it in the top tier of supplements we've analyzed. The product contains 1 active ingredients with 135 servings per container. Of the 3 inactive ingredients, 1 are rated safe and 0 are flagged for review. The manufacturer, Optimum Nutrition, holds a brand trust score of 100/100 with 10 verified certifications including Consumerlab, Informed Sport, Labdoor, Nsf Certified For Sport.

What are the ingredients in Optimum Nutrition Micronized Creatine?

Optimum Nutrition Micronized Creatine contains 1 active ingredients: Creatine Monohydrate (5 g). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Optimum Nutrition Micronized Creatine safe to take?

Optimum Nutrition Micronized Creatine 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 Optimum Nutrition a trustworthy supplement brand?

Optimum Nutrition receives a brand trust score of 100/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1986 and headquartered in Downers Grove, IL, United States, the company offers 311 products in their lineup. They hold 10 verified certifications including Consumerlab, Informed Sport, Labdoor, Nsf Certified For Sport. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Optimum Nutrition has 5 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.