Third-Party Tested Creatine: What NSF, Informed Sport and GMP Actually Mean
Four certification programmes, one federal regulation that is not a certification at all, and one document that settles the purity question. Here is what each badge tests, what it leaves out, and where to look any claim up yourself.
The Short Version
- Which creatine is third party tested? You can settle it for any tub in two minutes, because every programme publishes a free database: NSF at nsfsport.com, Informed Sport and Informed Choice at wetestyoutrust.com, and the Cologne List at koelnerliste.com
- Most creatine sold for everyday use carries no certifier mark at all. That is normal rather than damning, because those programmes exist to protect athletes who are drug tested
- The marks screen for substances banned in sport. Purity from manufacturing impurities is a separate question, and no badge on this page answers it
- Only two marks test the specific batch you are holding. Informed Sport tests every batch before release; NSF Certified for Sport screens per lot and publishes which lots
- "GMP certified" is not a purity claim. Current good manufacturing practice is a mandatory US regulation, 21 CFR Part 111, that allows testing a statistical subset of batches and requires no result to be published
- The document that answers the purity question is a lot certificate of analysis: the lot number from your tub, the method, and both the limit and the measured result for creatinine, dicyandiamide, dihydrotriazine and heavy metals
- ThriveOn publishes that certificate rather than a badge, along with a seal code you can verify with Alzchem, the maker, and will send the certificate for your lot on request
Every creatine tub on the shelf now says some version of the same thing. Third party tested. Lab tested. Purity verified. The phrases are unregulated, they are not interchangeable, and a shopper searching for third party tested creatine monohydrate has no obvious way to tell which one is backed by a laboratory result and which is a line of type on a label.
Here is the split that untangles the whole category. Every mark below was built to keep substances banned in sport out of supplements taken by athletes who get drug tested. None of them measures what the manufacturing left behind in the powder. A tub can be made in a GMP certified plant, carry a badge on the front, and still have never been tested for dicyandiamide, creatinine or dihydrotriazine.
What "Third Party Tested Creatine Monohydrate" Actually Means
The phrase has no legal definition, so it gets used for three very different situations.
- The facility was audited. An outside body inspected the plant, its procedures and its record keeping. Nobody tested your tub.
- The product was certified. A finished product was tested against a standard, then re-checked periodically, often annually.
- The batch was tested. The specific production lot that filled your tub was analysed, and the result exists as a document with a lot number on it.
All three are legitimate. Only the third tells you anything about the powder you are about to swallow. When a label says "third party tested" without saying which of the three it means, assume the weakest one, because a brand with per-batch results would generally say so.
What Each Mark Actually Covers
Every mark you are likely to see on a creatine tub, and the free database where you can check any claim yourself.
| Mark | What It Actually Tests | What It Does Not Cover | Batch, Product or Facility | Where You Check It |
|---|---|---|---|---|
| NSF Certified for Sport | Finished production lots screened for roughly 290 substances banned in sport, on top of a facility GMP audit and NSF/ANSI 173 certification.1,2 | Not an efficacy or health assessment. NSF frames it as helping minimise risk, and USADA says it reduces but does not necessarily eliminate the chance of a positive test.2,7 | Banned-substance screening is per lot. The underlying contents testing is annual.1 | Product and lot search at nsfsport.com5 |
| NSF/ANSI 173 Contents Certified | That the label matches what is in the product, plus contaminants: lead, mercury, arsenic, cadmium, chromium (VI), microbiological limits, mycotoxins and pesticides on botanicals.3 | The banned-substance panel is what Certified for Sport adds on top. This is the layer beneath it, not the same mark.4 | Annual audits with periodic retesting of certified products, not lot by lot.3 | listings.nsf.org6 |
| Informed Sport | Every batch tested before release, for over 285 substances prohibited in sport, in an ISO/IEC 17025 accredited laboratory, plus blind testing of retail stock.8 | Excludes cannabinoid products, including CBD extracts and hemp protein. The programme states plainly that no scheme can test for every prohibited substance.8 | Every batch, before release.8 | Certified brands at sport.wetestyoutrust.com9 |
| Informed Choice | The same banned-substance panel, on samples bought anonymously from retail shelves.10 | Not every batch. Sampling is monthly from retail, so a batch made between rounds is not individually screened.10,11 | Monthly blind sampling from retail.10,11 | Certified brands at choice.wetestyoutrust.com12 |
| USP Verified | The widest scope of any mark here: ingredient identity and declared potency, contaminant limits, that the product breaks down and releases within a set time, and manufacture to FDA cGMP.13 | USP states it does not comprehensively address efficacy and does not publish testing reports and results, and describes the programme as only verifying label accuracy, amounts and contaminant limits, not drug interactions, contraindications or side effects.14 | Facility and product together, re-evaluated annually, with off-the-shelf surveillance. Verification is not a one-time event.14 | quality-supplements.org15 |
| cGMP / 21 CFR Part 111 | Nothing, by itself. It is the mandatory US regulation covering manufacturing, packing, labeling and holding, and it requires written specifications for identity, purity, strength and composition.16 | Not a certification and not a purity guarantee. The rule permits verifying a statistical subset of finished batches, and requires no result to be published. FDA does not approve or test supplements before sale.16,17 | A continuous legal obligation, checked by inspection. A third-party GMP mark audits the facility annually.4,19 | No consumer database. FDA publishes no approval list.17 |
| The Cologne List | Selected anabolic-androgenic steroids and stimulants, analysed at the Center for Preventive Doping Research at the German Sport University Cologne.20 | A doping screen, not a purity screen. It says nothing about process impurities such as dicyandiamide or dihydrotriazine. Listing does not mean a product is free of doping substances, only that risk is significantly minimised.21 | Per product, with laboratory analysis at least once a year, and batch numbers and dates shown on each listing.21 | Product database at koelnerliste.com22 |
| Our take | Only two of these marks test the batch you are holding, and both are looking for doping agents rather than manufacturing impurities. | None of them tells you the creatinine, dicyandiamide or dihydrotriazine level in your tub. | For purity, the answer is a lot certificate of analysis. | Ask the brand, then check the lot number against the tub. |
Programme details as published by each certifier and, for cGMP, as written in 21 CFR Part 111. Checked 31 August 2026. The final row is our editorial read.
The NSF Family Is Two Different Marks
NSF runs a three-step ladder and the steps get mistaken for each other constantly. A product must be GMP certified before it is eligible for NSF/ANSI 173, and it must hold NSF/ANSI 173, NSF 229 or NSF 527 before it is eligible for Certified for Sport.3,4 NSF/ANSI 173 covers label accuracy and contaminants. Certified for Sport adds the banned-substance panel on top.3
The cadence is what most shoppers get wrong. Certified for Sport screens lot by lot, and NSF publishes the specific lots it has tested.1,2 The contents and contaminant testing underneath is annual.1,3 So a product certified in January and reformulated in July carries a mark whose contents check is months old while its doping screen stays current.
Informed Sport and Informed Choice Are Not the Same Programme
Both are run by LGC and both use the same screen in an ISO/IEC 17025 accredited laboratory. The difference is sampling, and it is a large one. Informed Sport tests every single batch before release, then buys retail stock for blind testing on top.8 Informed Choice tests monthly, on samples bought anonymously from retail shelves.10,11 Monthly sampling is a real deterrent. It is not a certificate covering the batch in your hand.
Informed Sport is candid about its edges too. It does not accept cannabinoid products at all, and it states plainly that no supplement testing programme can test for every substance prohibited in sport.8
USP Verified Is the Widest Check, and the Rarest
The USP Verified Mark covers more ground than anything else on this page, and the table lists the four things it checks.13 What the table cannot show is the cadence. Verification combines a facility audit, documentation review on specific lots, product testing and off-the-shelf surveillance, re-evaluated annually. In USP's own words, verification is not a one-time event.14
USP is also unusually direct about its limits. The programme does not comprehensively address efficacy, it does not publish testing reports and results, and USP describes it as only verifying label accuracy, declared amounts and contaminant limits rather than drug interactions, contraindications and side effects.14 More than 160 supplement formulas carry the mark, and not one is a creatine product. The directory has no creatine category at all.15
The Cologne List Is a Doping Screen, Not a Purity Screen
The Cologne List is the most transparent database of the four. Listings show batch numbers and analysis dates, and listed products are re-analysed at least once a year.21,23
It is also explicit about what it is not. Publication does not mean a product is basically free of doping substances, only that the risk is significantly minimised, and no laboratory can test for every substance banned by the World Anti-Doping Agency.21 An entry tells you nothing about dicyandiamide or dihydrotriazine. The list is not looking for them.
Who Pays for These Badges
Every one of them is a paid, voluntary, commercial service a brand applies for, and NSF, Informed Sport and USP all address their programmes to the companies that pursue them.1,8,13 The Cologne List is the only one that publishes a figure: EUR 450 excluding VAT per laboratory analysis including the label check, and only manufacturers may commission a test.20,21
This is normal. In almost every industry the party seeking a certificate pays for it. But it has one consequence worth carrying into a shopping decision. A small brand, or a single-ingredient product with nothing in the tub but the ingredient, often has little reason to buy a sport certification it does not need. Presence of a badge is evidence that a specific test was run. Absence of one is mostly evidence about a budget.
Why a Tub Can Be GMP Made and Still Carry Impurities
"GMP certified" is the badge that causes the most confusion, because it sounds like a purity claim.
Current good manufacturing practice for supplements in the United States is 21 CFR Part 111, the mandatory federal regulation covering the manufacturing, packaging, labeling and holding of dietary supplements.16 It is not something a company opts into, and it is not a mark of distinction. It is the floor.
The regulation does require real quality work. A manufacturer must set written specifications for the identity, purity, strength and composition of each finished batch, and FDA describes the rules as ensuring the identity, purity, quality, strength and composition of dietary supplements.16,18 Two features of the rule explain why a GMP-compliant tub can still carry impurities.
- Not every batch has to be tested. The rule permits verification for a subset of finished batches identified through a sound statistical sampling plan, or for every finished batch. Statistical sampling is an explicitly allowed route.16
- Nothing has to be published. Part 111 requires a manufacturer to hold records. It does not require any purity result to be made public, and creates no consumer-facing database.16
And the Food and Drug Administration does not have the authority to approve dietary supplements before they are marketed, does not approve their labeling apart from certain claims such as health claims that require authorisation, and does not test them before they are sold.17 A phrase like "FDA registered facility" therefore describes a filing, not an endorsement.
Third-party GMP marks such as NSF/ANSI 455 or NPA GMP do add something genuine. An independent audit of the plant, its written procedures, its sourcing and traceability and its recall procedures, run annually or twice a year depending on grade.1,4 NPA's mark is awarded to companies for manufacturing.19 USP, which runs its own GMP audits, notes that its audit is not a substitute for a regulatory one and that it does not publish a list of GMP audited sites.14 All of that describes a well-run facility. None of it measures the lot in your tub. For how manufacturing tiers differ in practice, our guide to what creatine purity actually means walks through them.
How to Ask a Brand for a Certificate of Analysis
This is the highest-yield thing a shopper can do, and it takes one email. Ask the brand for the certificate of analysis for the lot number printed on your tub. The wording matters, because asking for "your COA" will often get you a specification sheet instead.
- A specification sheet lists the limits a product is meant to meet. It is the same for every lot and shows no measurements.
- A lot certificate of analysis names one production lot and shows, for each parameter, the method, the specification and the result that was actually measured.
A real certificate of analysis for creatine monohydrate names the lot, the manufacturer and the analytical method, and reports both the limit and the measured value for each named impurity: creatinine, dicyandiamide, dihydrotriazine and heavy metals. For where each impurity comes from in the synthesis, and what independent analysis has found in commercial creatine, see what lab tests actually find in commercial creatine. For the full checklist of what the document must show, see German creatine vs Chinese creatine.
Two things to watch for. A single figure such as "99.9% pure" is an assay result, and an assay can look excellent while an impurity sits above its limit. They measure different things. And a certificate that arrives with the lot number, dates and method blanked out is not verification. It is a picture of a document.
Be fair about what a refusal means. A brand that buys blended powder through a broker often genuinely cannot produce a certificate, because nobody in the chain ever kept one. That is the actual signal, and it is the same thing that makes an undisclosed-origin powder with no batch testing a poor bet.
The Five Questions to Ask Before You Buy
In order of how much they tell you.
- Who made the creatine, and where? A named manufacturer and a named plant is the strongest signal on this list, because everything else becomes checkable once you have it. "Manufactured for" a brand is not a named producer.
- Can I see the certificate of analysis for my lot? Not a specification sheet. A lot certificate, with the method, the limits and the measured results.
- Does the certificate name the impurities, not just the purity? Creatinine, dicyandiamide, dihydrotriazine and heavy metals, each with its own line.
- If it claims a certification, does the database agree? Search the product at nsfsport.com, sport.wetestyoutrust.com, choice.wetestyoutrust.com or koelnerliste.com. This takes two minutes and settles the question.5,9,12,22
- Is there a code on the pack I can verify with the maker? Some ingredient producers run their own authenticity lookup, which confirms both the material and the licensed brand.
Working through a label more generally? Our guide on how to read a supplement label covers doses, forms and proprietary blends.
What ThriveOn Publishes
Applying our own checklist to our own tub, since that is the only fair way to end a page like this.
ThriveOn Creatine is Creavitalis®, a micronised creatine monohydrate made by Alzchem Trostberg GmbH in Trostberg, Germany, produced in a dedicated GMP facility that is FSSC 22000 certified, with every batch traceable. The named impurities are tested against EFSA specifications: creatinine, dicyandiamide, dihydro-1,3,5-triazine and heavy metals.
The certificate of analysis is published rather than described. The redacted Creavitalis® certificate for Lot 319842V is on the product page for anyone to read. It names the lot, the manufacturer, the country of origin, the production and retest dates and the method, and for each parameter it shows the specification alongside the measured result. The specification limits are an assay of at least 99.9%, creatinine at or below 100 mg/kg, dicyandiamide at or below 50 mg/kg, and dihydrotriazine below 3 mg/kg, all by HPLC.28
There is also a code to check. The Creavitalis® quality seal carries a six-digit QA code in the bottom left of the logo on the tub. Enter ThriveOn's code, 25TE17, at creavitalis.com and ThriveOn comes back as the licensed brand, which confirms both that the material is genuine and who is authorised to sell it.26
The manufacturing side is audited as well. ThriveOn's products are made in facilities certified to NSF/ANSI 455-2 GMP, the third-party GMP standard described earlier on this page, and those certifications are current. That is a credential for the plant rather than a measurement of your tub, which is exactly the distinction this article keeps drawing, and it is the tier that sits underneath any product mark.
The checklist above tells you to ask for the certificate matching the lot on your tub, so it is only fair to say what we do. ThriveOn will send a lot-specific certificate of analysis on request. Ask us, and ask any other brand you are weighing up. A company that cannot produce one for the lot in your hand has told you something worth knowing.
What ThriveOn does not carry is a sport programme's product mark. No NSF Certified for Sport, no Informed Sport, no Cologne List listing. The reason is the one this article has been making throughout. Those programmes are built for competitors who are drug tested, and they would tell you nothing about the impurity profile of the powder. The document that answers the purity question is the certificate of analysis, and that is the one we publish.
Creapure® and Creavitalis® are both Alzchem creatines made in Germany. Creapure® is the sports-nutrition brand: at least 99.9% pure, every batch tested by HPLC before release, no detectable dihydrotriazine, and listed on the Cologne List in its own right, with published batch analyses going back to 2000 and a listing renewed every year since 2015.23,24,25 Creavitalis® is the wellness and functional-food line, manufactured under strictly controlled conditions exclusively in Germany, and it reaches the Cologne List through the finished products of brands that use it rather than on its own.22,26,27 The specification Alzchem filed with the FDA for Creapure® sets creatinine at or below 100 mg/kg, dicyandiamide at or below 50 mg/kg and dihydrotriazine at or below 3 mg/kg, the same limits on the Creavitalis® certificate ThriveOn publishes.29 If you are weighing the two, our comparison of Creapure vs creatine monohydrate goes through it in detail.
A badge tells you a test was bought. A certificate tells you what the test found.
Questions We Hear About Third-Party Tested Creatine
Which creatine is third party tested?
There is no single list, because the four certifier databases are searchable by product rather than by category. Search your product or brand name in the NSF Certified for Sport database, the Informed Sport and Informed Choice certified-brand listings, and the Cologne List product database. Finding nothing is common rather than alarming, because most creatine sold for everyday use carries no sport certification at all. Those programmes exist mainly to protect athletes who are drug tested. For purity, ask the brand for the certificate of analysis instead.
Does creatine monohydrate get third party tested?
Routinely, yes, but usually by the ingredient maker rather than by a consumer-facing certifier. A reputable creatine producer tests each batch by HPLC before release and issues a certificate of analysis showing the specification and the measured result for each process impurity. That document is the purity evidence. A badge on the front of the tub usually means something else, that the finished product was screened for substances banned in sport.
Is a GMP certified creatine safer?
GMP tells you the plant has documented systems, not what is in your tub. Current good manufacturing practice is a legal requirement in the United States under 21 CFR Part 111, so every legitimate manufacturer is already subject to it, and the rule lets a manufacturer verify a statistical subset of finished batches rather than all of them. A third-party GMP mark such as NSF/ANSI 455 or NPA GMP adds an independent audit of the facility. That is a real signal about the plant, not a purity result for the lot you bought.
How do I know if my creatine is third party tested?
Look it up rather than taking the label's word for it. Each programme publishes a free database. NSF lists certified products and the specific lots tested, Informed Sport and Informed Choice publish certified-brand listings, and the Cologne List publishes a product database with batch numbers and analysis dates. A claim that appears in none of them, with no document behind it, is a marketing phrase rather than a test result.
What should a certificate of analysis for creatine contain?
A lot number that matches the code on your tub, the testing method, and for each named impurity both the specification and the measured result. For creatine monohydrate the impurities that matter are creatinine, dicyandiamide, dihydrotriazine and heavy metals. A single number such as "99.9% pure" is an assay figure, not an impurity profile. Check too that it is a lot certificate and not a generic specification sheet, which shows the limits without showing what was measured.
Does ThriveOn creatine carry an NSF or Informed Sport badge?
Not a sport programme's product mark, no. Those programmes screen finished products for substances banned in sport, they are commissioned and paid for by the brand, and ThriveOn Creatine is a single ingredient with nothing else in the tub, so the risk they manage is small. On the manufacturing side, ThriveOn's products are made in facilities certified to NSF/ANSI 455-2 GMP, and those certifications are current. What we publish on purity is the document that speaks to it directly. The Creavitalis® certificate of analysis from Alzchem shows the method, the specification and the measured result for each named impurity, and the seal code on the tub can be verified with the manufacturer. We will also send the certificate for your lot if you ask.
Every programme detail is taken from the certifier's own published pages, and the cGMP points from the text of 21 CFR Part 111 itself. All links checked 31 August 2026.
- NSF. How to get certified: NSF Certified for Sport. www.nsfsport.com/get-certified.php
- NSF. Certified for Sport program. www.nsf.org/consumer-resources/articles/certified-for-sport-program
- NSF. Product and ingredient certification: dietary supplements. www.nsf.org/nutrition-wellness/product-and-ingredient-certification
- NSF. Dietary supplements and functional foods FAQs. www.nsf.org/about-nsf/faqs/dietary-supplements-functional-foods-faqs
- NSF. Certified for Sport product search. www.nsfsport.com/certified-products
- NSF. Certified product and system listings. listings.nsf.org/certified-products-systems
- USADA. Athlete advisory: supplement risk and NSF Certified for Sport. www.usada.org/athlete-advisory/supplement-risk-nsf-certified-for-sport
- Informed Sport (LGC). Frequently asked questions. sport.wetestyoutrust.com/about/frequently-asked-questions
- Informed Sport (LGC). Certified brands. sport.wetestyoutrust.com/certified-brands
- Informed Choice (LGC). About the programme. choice.wetestyoutrust.com/about
- Informed Choice (LGC). Certification process. choice.wetestyoutrust.com/about/certification-process
- Informed Choice (LGC). Certified brands. choice.wetestyoutrust.com/informed-choice-certified-brands
- USP. The USP Verified Mark. www.usp.org/verification-services/verified-mark
- USP. Verification services: frequently asked questions. www.usp.org/frequently-asked-questions/usp-verification-services
- USP. Verified products listing (Quality Supplements). www.quality-supplements.org/usp_verified_products
- US Code of Federal Regulations. 21 CFR Part 111: Current good manufacturing practice in manufacturing, packaging, labeling, or holding operations for dietary supplements. www.ecfr.gov/current/title-21/chapter-I/subchapter-B/part-111
- US Food and Drug Administration. Questions and answers on dietary supplements. www.fda.gov/food/information-consumers-using-dietary-supplements/questions-and-answers-dietary-supplements
- US Food and Drug Administration. Backgrounder on the final rule for current good manufacturing practices for dietary supplements. www.fda.gov/food/dietary-supplements-guidance-documents-regulatory-information/backgrounder-final-rule-current-good-manufacturing-practices-cgmps-dietary-supplements
- Natural Products Association. NPA GMP certification programme. www.npanational.org/certifications/npa-gmp-certification-program
- Cologne List. Laboratory analyses and fees. www.koelnerliste.com/en/for-companies/laboratory-analyses
- Cologne List. Frequently asked questions. www.koelnerliste.com/en/faqs
- Cologne List. Product database. www.koelnerliste.com/en/product-database
- Cologne List. Creapure product listing and batch history. www.koelnerliste.com/en/product/creapure-neutral
- Creapure (Alzchem). Quality and manufacturing. www.creapure.com/en/creapure/quality-manufacturing
- Creapure (Alzchem). For athletes and sports enthusiasts. www.creapure.com/en/creapure/for-athletes-sports-enthusiasts
- Creavitalis® (Alzchem). Quality seal and QA code lookup. www.creavitalis.com/en
- Alzchem. Creavitalis® brand overview. www.alzchem.com/en/brands/creavitalis
- ThriveOn. Creavitalis® Certificate of Analysis, Lot 319842V (redacted). cdn.shopify.com/s/files/1/0688/7273/2850/files/creavitalis-coa-lot-319842v.png?v=1776299056
- US Food and Drug Administration. GRAS Notice GRN 931, creatine monohydrate (Creapure), Alzchem Trostberg GmbH: product specification, Table 2. www.fda.gov/media/143525/download
*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Certification programme details change. Verify any mark in the certifier's own database before relying on it. Creapure® and Creavitalis® are registered trademarks of Alzchem Trostberg GmbH.
