People search "NSF certified creatine" about 3,000 times a month in the US, and most of them want to know one thing: is this tub safe to take if I get drug-tested in sport? The label answer is shorter than the real one. NSF runs two programmes that both put "NSF" on a supplement, only one of them screens for substances banned in sport, and even that one covers named production lots, not a brand.
This page sets out the difference from NSF's own description, counts what NSF's sport register held for creatine on 5 October 2026, and reports what this site found when it checked the brands it profiles.
Two programmes, one word
NSF describes the route to its sport mark in three steps (read on NSF's certification page, 5 October 2026):
| Step | What NSF says it covers | Shown as |
|---|---|---|
| 1. GMP certification | Audits of the sites that make, pack, store or distribute the product, annually or twice a year depending on grade | Facility certification |
| 2. Contents certification | Testing that the finished product "contains no unsafe levels of contaminants and meets the claims and contents shown on the product label", with annual laboratory testing and review of formula or supplier changes | NSF/ANSI 173 listing |
| 3. Certified for Sport | Production lots "tested to ensure they are free from 290 banned substances", including anabolic agents, stimulants, diuretics, SARMs and growth hormone–releasing peptides; tested lots listed online and in NSF's app | Certified for Sport mark |
So a contents listing (steps 1 and 2) checks what is in the product once a year. The sport mark (step 3) adds a banned-substance screen of the lots that NSF then names. For an athlete the third step is the one that bears on a test; for anyone else, step 2 answers whether the label is right.
What the register held for creatine
NSF's Certified for Sport register was read on 5 October 2026. It held 2,542 product rows. Rows are per flavour and format, so one product sold in eight flavours appears eight times.
| Count, 5 October 2026 | Rows |
|---|---|
| All rows on the register | 2,542 |
| Tagged by NSF as creatine products | 275 |
| Tagged as creatine and with creatine in the product name | 184 |
| …of which gummies or chews | 39 (seven brands) |
| …of which named "monohydrate" | 50 (26 brands) |
The 184 rows come from 55 brands once spelling variants of one company's name are merged (for example "Thorne" and "Thorne®"). The 91 creatine-tagged rows without creatine in the name are mostly blends and pre-workouts in which creatine is one ingredient.
The brands profiled on this site
This site profiles creatine brands from their labels and stores, and checks each against NSF's registers. On the sport register on 5 October 2026, alphabetically:
| Brand | Creatine rows on Certified for Sport | Note |
|---|---|---|
| Bloom | 0 | Bloom energy drinks are listed; no creatine (profile) |
| Momentous | 7 | Powders and chews (profile) |
| Naked | 0 | Listed under NSF/ANSI 173, the contents standard (profile) |
| Nutricost | 0 | (profile) |
| Optimum Nutrition | 0 | Its label carries an Informed Choice seal (profile) |
| Orgain | 0 | Its store claims Informed Choice (profile) |
| Sports Research | 2 | Both are unflavoured powders, one Creapure-branded; the capsules sold at Costco are not among them (shelf profile) |
| Thorne | 7 | Unflavoured powder listing names dozens of lots (profile) |
| Transparent Labs | 13 | All 13 are Creatine HMB, a blend; one row per flavour (profile) |
Two of those rows show the misreadings that matter. Naked's facts are true as printed, and NSF does list the product, but under the contents standard rather than the sport programme. Sports Research is on the sport register, but for powders; the capsule product a shopper finds at a warehouse store is a different listing that was not there. In both cases "NSF" is accurate and the conclusion a tested athlete might draw from it is not.
The lot number is the unit that counts
A Certified for Sport listing names lot numbers. The unflavoured Transparent Labs Creatine HMB listing named 12 lots on 5 October 2026; Thorne's unflavoured creatine listing named 65 when this site read it on 24 September. NSF says that the lots it tests are the ones it lists.
That gives the check a reader can do: find the product's listing on the register, then compare the lot number printed on the tub with the lots the listing names. A match means that lot was screened. A tub whose lot is not named was not shown to have been, whatever the label says, because the listing is evidence about lots, not a promise about a brand.
What certification does not tell you
- Whether the product works. Neither programme tests an effect in the body. The evidence for creatine itself is graded on creatine benefits.
- The form or the amount. A listed product can be a gummy with 1 g per piece or a blend with HMB. Which forms have been tested in trials is on types of creatine, and the gummy record (half of 12 brands missed their label claim in one HPLC survey) is on creatine gummies.
- Whether creatine itself is allowed. It is not on the World Anti-Doping Agency's list; the sport-testing question for creatine itself, and the urine creatinine check every drug test runs, are on does creatine show up on a drug test.
- Anything about other programmes. Informed Sport and Informed Choice are run by another testing company with separate registers. Both refused automated requests when this site tried to read them (HTTP 403 and a bot check), so this page reports none of their listings.
Limits of this page
The counts are one reading of NSF's register on 5 October 2026; listings are added and removed, and the register shows rows, not distinct products. The brand-merging step (55 brands) is this site's, done by hand on the company names shown. Thorne's lot count is from 24 September. Nothing here is a laboratory test of any product.
Sources and dates
- NSF, How to get certified (three steps, 290 banned substances, lots listed online) and What our mark means, read 2026-10-05.
- NSF Certified for Sport, register search, "creatine", full results page parsed 2026-10-05 (2,542 rows; product-type tags, product and company names).
- NSF Certified for Sport, Transparent Labs Creatine HMB Unflavored, lot numbers read 2026-10-05.
- NSF, dietary-supplement listings, NSF/ANSI 173, search "naked", as read for this site's Naked profile on 2026-10-04.
- This site's brand profiles (dates on each page): Bloom, Costco shelf, Momentous, Naked, Nutricost, Optimum Nutrition, Orgain, Thorne, Transparent Labs.
- Informed Sport and Informed Choice registers (sport.wetestyoutrust.com, choice.wetestyoutrust.com): automated requests refused, 2026-09-30 to 2026-10-05; not read.