Creatine monohydrate is the least glamorous product in the sports aisle: a white powder, sold by the kilogram, tasting of wet chalk. The gummy is the same molecule with a marketing department, and the pitch is entirely about the format — no shaker, no grit, a countable portion. This is not a news story and we are not going to dress it as one; the questions the format raises are the permanent kind. The choice between the two is a chemistry problem before it is a preference problem, and a paperwork problem after that.
The two formats, side by side
The chemistry does most of the work
Creatine’s instability in water is not an obscure finding, and it is the whole of the gummy’s problem. Dry, the molecule sits still for years. Dissolved, it degrades towards creatinine, a breakdown product of no use to muscle. A gummy is, structurally, a small amount of water held in a gel, so the active is in contact with the conditions that degrade it from the moment it is made until the moment it is eaten.
A powder does not have that problem in the tub. It has it in the glass, which is why the standing advice is to mix and drink rather than mix and carry. The risk falls differently: the powder buyer controls it, the gummy buyer inherits it.
What the testing actually found
The most useful public number here comes from a supplement manufacturer’s own quality programme rather than a regulator. NOW Foods, working with Alkemist Labs, bought a spectrum of 13 creatine gummy products from Amazon or direct from the brands and ran high-performance liquid chromatography against each product’s label claim. Only 46% passed; the remaining seven were reported as not meeting their stated content. That round was published on 8 March 2024 — it is a 2024 result, not a current audit of the 2026 shelf, and it should be read as such.
Two caveats this desk will not bury. NOW Foods sells creatine powder, so it is not a disinterested party, and the page carrying the figure discloses itself as a sponsored post. The products were also bought in the United States, so nothing follows about which of them reach a British shelf. What survives is still worth having: a competently run HPLC survey found that roughly half a small sample of gummies did not contain what the pack said. This desk found no published testing round of comparable scale for monohydrate powder, so no side-by-side failure rate can be given — an absence of a public number, not evidence that powder fails at the same rate.
The wording the label is allowed
The regulatory half is where this site earns its keep. The Great Britain nutrition and health claims register — the government’s published roll of authorised and non-authorised wordings — records in its own change log that on 27 February 2025 it added two non-authorised claims, 003UKNHCC for beta-glucan and 004UKNHCC for creatine. A non-authorised entry is a wording assessed and refused: a closed door with a reference number on it.
That is a narrower statement than the one the category’s advertising invites, and narrower than the one an incautious reviewer would make. It establishes that at least one creatine wording is off the table in Great Britain. It does not establish that every creatine wording is, and this desk will not assert an absence it has not read. The instruction for a buyer is the same either way: check any front-of-pack promise against the register rather than against the brand’s confidence, exactly as with the herbal registration numbers that get read for more than they certify.
Pros and cons
Verdict
Monohydrate powder is the boring product with the better paperwork, and on this desk that is the recommendation nine times in ten. It is cheap, it is dry, its content is easy to verify, and its failure mode is a gritty drink rather than a missing dose. The gummy earns its place only in the narrow case where the powder is not being taken at all — and even then, buy from a maker that publishes a certificate of analysis for the batch in your hand, not a testing claim in the abstract.
A last point of order. Creatine is sold in the UK as a food supplement, not as a licensed medicine, and nothing here is a therapeutic claim or a substitute for advice from a pharmacist or GP — particularly if you take prescribed medication or have any kidney concern.