Third-Party Tested Creatine: NSF & Informed Sport Options Compared
Dietary supplements are not approved by the FDA before they are sold, so quality depends largely on the manufacturer. Independent certification programs add a layer of checking by testing products for substances banned in sport.
This page lists only creatine products that carry a recognized third-party certification, compared by cost per 5 g of creatine. If you compete in a tested sport or simply want an extra layer of assurance, start here.
| Product | Form | Servings | Price (USD) | Cost per 5 g | Creapure | Third-party certification | Where |
|---|---|---|---|---|---|---|---|
| NOW Foods Sports Creatine Monohydrate, 1 kg | Powder | 200 | 38.46 | 0.19 | No | Informed Sport | iHerb |
| ABE Creatine Monohydrate, Pure Micronized Powder, Unflavored, 300 g | Powder | 60 | 13.75 | 0.23 | No | Informed Sport | iHerb |
| Sports Research Creatine Monohydrate, Unflavored, 1 kg | Powder | 200 | 49.47 | 0.25 | No | Informed Sport | iHerb |
| Optimum Nutrition Micronized Creatine Powder, Unflavored, 600 g | Powder | 120 | 29.99 | 0.25 | No | Informed Choice | iHerb |
| Thorne Creatine, Unflavored, 900 g | Powder | 180 | 86.52 | 0.48 | No | NSF Certified for Sport | iHerb |
| BPN Creatine Monohydrate (Creapure), Unflavored, 300 g | Powder | 60 | 34.99 | 0.58 | Yes | NSF Certified for Sport | iHerb |
| NOW Foods Sports Creatine Monohydrate, 750 mg, 240 Veg Capsules | Capsule | 40 | 21.43 | 0.60 | No | Informed Sport | iHerb |
| Optimum Nutrition Micronized Creatine, 300 Capsules | Capsule | 150 | 56.19 | 0.75 | No | Informed Choice | iHerb |
Prices last checked: 2026-09-16. Prices change often; the retailer's price at checkout applies. Some links are affiliate links, and we may earn a commission at no extra cost to you. Click a column header to sort.
Key takeaways
- Lowest cost per 5 g: NOW Foods, Sports Creatine Monohydrate, 1 kg at $0.19.
- Lowest-cost third-party certified option: NOW Foods, Sports Creatine Monohydrate, 1 kg (Informed Sport) at $0.19.
- Lowest-cost Creapure option: BPN, Creatine Monohydrate (Creapure), Unflavored, 300 g at $0.58.
- Price range: $0.19 to $0.75 per 5 g across 8 products.
What the certifications mean
NSF Certified for Sport. Run by NSF, an independent public health organization. Certified products are tested for a broad list of substances banned in sport, the label contents are verified, and manufacturing facilities are audited. It is widely recognized by professional sports leagues in North America.
Informed Sport. Run by LGC. Every batch of a certified product is tested for banned substances before it is released. This makes it a common choice for athletes in drug-tested competition.
Informed Choice. Also run by LGC. Products are tested for banned substances through regular sampling rather than every batch. It offers useful assurance but is a lighter program than Informed Sport.
All three programs focus mainly on banned substances. They are not a guarantee that a product works better, and they do not replace your own judgment or medical advice.
How to verify a certification yourself
Marketing claims and packaging can be out of date. Before you buy, you can search the product name in the certifier’s own database:
- NSF Certified for Sport: nsfsport.com
- Informed Sport: sport.wetestyoutrust.com
- Informed Choice: choice.wetestyoutrust.com
For certified batches, check that the batch number on your container matches the certifier’s records where the program provides one. We only list a certification in our table if we could confirm it in these databases. See our Methodology.
Is certified creatine worth the extra cost?
It depends on your situation. In our table, some certified products cost about the same per 5 g as uncertified ones, while others cost noticeably more. Sort by cost per 5 g to see the difference.
- If you are tested for banned substances, a certified product is the safer choice, and Informed Sport or NSF Certified for Sport are the most relevant programs.
- If you are not tested, certification is still a useful quality signal, but the ingredient itself, creatine monohydrate, is the same. Compare all options on our creatine price comparison page.
Related comparisons
Frequently Asked Questions
What does “third-party tested” mean?
It means an organization independent of the brand has tested the product. Some brands use the phrase for their own lab arrangements, so we only list recognized certification programs with public databases.
Is NSF Certified for Sport better than Informed Sport?
Both are respected programs. NSF Certified for Sport also verifies label contents and audits facilities, while Informed Sport tests every batch for banned substances. Which one matters more can depend on the rules of your sport or league.
Can a certified product still contain contaminants?
Certification reduces risk but cannot eliminate it completely. Programs test for specific substances and use sampling or batch testing, so it is still worth buying from reputable retailers.
Why doesn’t this table include creatine HCl?
Creatine HCl products are usually dosed in much smaller amounts, so cost per 5 g is not a fair comparison. We compare them separately.
Is creatine banned in sport?
Creatine is not on the World Anti-Doping Agency (WADA) Prohibited List. The concern for athletes is contamination with other substances, which is what certification programs test for. Always check your own sport’s rules.
Some links on this page are affiliate links. See our Affiliate Disclosure. This page is for information only and is not medical advice. See our Medical Disclaimer.