Thorne Creatine
NSF Certified for Sport micronized creatine monohydrate powder. 5g per serving, 90 servings. Unflavored. Supports muscle strength, power, and cognitive function. Third-party certified for 270+ prohibited substances.
Research last verified August 19, 2026
Ethos Score
86/ 100Score is computed from the five dimensions below using verified research inputs.
The Takeaway
NSF Certified for Sport creatine monohydrate at 5 g per serving. The gold standard form with third-party certification.
Best For
- • Athletes subject to drug testing
- • People who want NSF certification for banned-substance screening
- • Straightforward 5 g creatine monohydrate without extras
Watch Out For
- • Creapure source not publicly established for this SKU
- • At $0.49/serving it sits above budget options at the same 5 g dose
Why this score
Score covers 85% of the full 100-point weight. Dimensions with no verified input are excluded from the calculation.
5 g creatine monohydrate matches the dose used in 500+ published studies on strength, power, and cognitive function.
Single-ingredient creatine monohydrate. Micronized form for mixability. No proprietary blends. Creapure source not publicly confirmed.
NSF Certified for Sport: independently verified for 270+ banned substances. The highest tier of sport supplement certification.
No product-specific heavy metal or PFAS data was located in this research pass. That is not a purity pass.
At approximately $0.49/serving (90 servings, $44), Thorne is priced above budget options but below most NSF-certified sport supplements.
Real Cost
Thorne Creatine — 90 Servings · Thorne Creatine 90 Servings
One-time purchase
$44
Cost per serving: $0.49
No verified official purchase link is available
Formula
Key Active Ingredients
Creatine (Creatine Monohydrate)
5 g1 scoop (5 g)
Testing & Transparency
Independent certification
A public certification verification is listed in Sources
Public test source
No product-specific test source is linked
Certifications
NSF Certified for Sport screens for 270+ prohibited substances. The certification is for the specific SKU.
Toxin & Forever Chemical Report
This section shows product-specific contaminant and PFAS (forever chemical) test results where available. “No Product-Specific Data Found” is not a purity pass — it means no public test result was located for this exact product. Organic, non-GMO, and similar certifications are agricultural standards and do not verify contaminant levels.
No product-specific contaminant test results were located. This is not evidence of safety — it means product-specific data was not found.
Evidence
Efficacy and Safety of Creatine Monohydrate
Research sourceThe International Society of Sports Nutrition 2017 position stand — the field's most comprehensive evidence review — concludes creatine monohydrate is the most effective ergogenic nutritional supplement for increasing high-intensity exercise capacity and lean body mass during training. This ingredient-level finding applies across all creatine monohydrate products regardless of brand.
Sources
NSF International — Certified for Sport: NSF Certified for Sport
NSF International — Certified for Sport: nsf-certified-for-sport