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Optimum Nutrition vs Thorne Creatine Monohydrate (2026)
Disclosure: We earn commissions on purchases made through our links. This never influences our scores. Editorial policy
The Verdict
Both products score A overall - one of the few ties at the top of any category. Optimum Nutrition edges Thorne on value, and both carry strong third-party certifications (Informed Choice vs NSF Certified for Sport). For competitive athletes who need NSF Certified for Sport specifically, Thorne is the safer bet. For everyone else, Optimum Nutrition delivers identical results at a lower daily cost.
Micronized Creatine Monohydrate Powder
Optimum Nutrition
Creatine (Creapure)
Thorne
Head-to-Head Comparison
| Category | Micronized Creatine Monohydrate Powder Optimum Nutrition | Creatine (Creapure) Thorne |
|---|---|---|
| Overall | A | A |
| Evidence | A | A |
| Quality & Purity | B+ | A |
| Value | A | B |
| Transparency | A | A |
| Cost/Day | $0.33Winner | $0.87 |
| Dose/Serving | 5000mg | 5000mg |
| Form | Micronized Creatine Monohydrate (Creapure) | Micronized Creatine Monohydrate (Creapure) |
| Third-Party Tested | ✓ Yes | ✓ Yes |
| Proprietary Blend | No | No |
Why This Comparison Matters
Optimum Nutrition and Thorne both sell creatine monohydrate - the most studied sports supplement in existence. The active ingredient is identical. Creatine is creatine. So why does Thorne cost more, and is the premium justified?
The answer comes down to third-party testing, NSF Certified for Sport status, and brand trust. Thorne's creatine is NSF Certified for Sport, meaning it is tested for banned substances - critical for competitive athletes subject to drug testing. Optimum Nutrition's Informed Choice certification provides similar assurance but through a different testing body.
Both score well in our system. The question is which testing certification and price point fits your needs.
Detailed Score Breakdown
Micronized Creatine Monohydrate Powder
Optimum Nutrition
Standard creatine monohydrate - supported by the full 500+ study evidence base
Informed Choice certified, Creapure source, GMP facility
$0.33/day at 5g dose - excellent value for a Creapure product with third-party certification
Single ingredient, no fillers, Creapure source clearly labeled on packaging
One of the best-selling creatine supplements globally, Creapure sourced with third-party testing
Creatine (Creapure)
Thorne
Standard creatine monohydrate with the full evidence base behind it
NSF Certified for Sport, uses Creapure (German-manufactured, highest purity grade available)
$0.87/day at 5g dose - premium pricing justified by NSF certification and Creapure
Single ingredient, full disclosure, NSF certification displayed prominently
Creapure is manufactured in Germany by AlzChem and is considered the purest creatine source available
How We Compared These Products
Every product in our database is scored on four equally-weighted categories: clinical evidence quality, third-party testing and purity verification, cost per clinically effective dose (not cost per pill), and label transparency. These scores combine into an overall letter grade from A+ through F.
Cost per effective dose is calculated using the clinically studied dose from published research, not the manufacturer's suggested serving. If a product requires multiple servings to reach the dose used in clinical trials, that cost is reflected in the value score.
For a full explanation of our scoring methodology, see our methodology page. Prices were last checked on the dates listed for each product and may have changed.
More Creatine Monohydrate Comparisons
We earn commissions on purchases made through our links. This never influences our scores or recommendations. See our editorial policy.
FDA Disclaimer: These statements have not been evaluated by the Food and Drug Administration. The products discussed on this page are not intended to diagnose, treat, cure, or prevent any disease. Always consult with a qualified healthcare professional before starting any supplement regimen.