Best Creatine Monohydrate UK (2026): Tested Picks and What the research Says

Our picks at a glance

Evidence grade here describes the product: "Strong" means an independent programme tests it; "Promising" means a well-researched ingredient without published independent testing of the finished product.

What is creatine and why do people take it for longevity?

Creatine is a compound your body makes from amino acids and stores mainly in muscle, where it helps recycle the energy you use in short, hard efforts like lifting, sprinting or climbing stairs quickly. You also get some from meat and fish, so vegetarians and vegans tend to have lower stores.

For longevity, the interest is muscle. Losing muscle and strength with age (called sarcopenia) is linked to falls, frailty and loss of independence. Creatine does not build muscle on its own, but it helps you train a bit harder, which adds up over months.

How we chose

We looked at creatine sold by UK brands and retailers in October 2026 and checked every product page for price, dose and testing. We ranked products on:

• Form: plain creatine monohydrate only. It is the form used in almost all research, and pricier forms (HCl, buffered, "ethyl ester") have not beaten it in trials, according to the International Society of Sports Nutrition position stand.
• Independent testing: Informed Sport (every batch screened for banned substances) scored highest, then Informed Choice (regular market sampling), then raw-material standards like Creapure.
• Cost per day at a 3 to 5g dose.
• Clear labelling: dose per scoop, no blends.

We do not accept payment for placement.

Which creatine should you buy?

Applied Nutrition Creatine Monohydrate (Unflavoured): best overall

The unflavoured tub is sold as Informed Sport batch tested, so each batch is screened by an independent lab before release. At £29.95 for 1kg (200 servings of 5g) it costs about 15p a day, the best value of the tested products we found. Caveat: only the unflavoured variants carry the Informed Sport label, and the brand does not name its raw material.

Myprotein Impact Creatine: best budget

Myprotein says its creatine is certified by Informed Choice, and the 500g bag (147 servings of 3.4g) was £12.49 when we checked, under 10p a day. Caveat: Informed Choice tests products bought from shops on a schedule rather than every batch, and Myprotein's prices change often.

Optimum Nutrition Micronised Creatine (Informed): best big-brand tested tub

ON's tested version comes in a 634g tub of 186 servings at 3.4g, which matches the 3g daily amount in the GB health claims. Micronised powder (ground finer) mixes more easily. Caveat: the page title says Informed Choice while the description says Informed Sport, so look up your batch on the Informed register if you compete. The cheaper standard tub is not labelled as tested.

Bulk Creatine Monohydrate (Creapure): best Creapure

If you want Creapure specifically, Bulk sells it as a single ingredient in sizes from 100g to 1kg. Creapure is made by AlzChem in Germany to its own purity specification. Caveat: that is a raw-material standard, not an independent test of the finished tub, and we saw no Informed mark on the listing. It is also pricey at full price, so wait for one of Bulk's frequent offers.

Puresport Creatine Monohydrate: best sachets for travel

Thirty pre-measured 5g sachets with Informed Sport certification shown on the page. Useful if you will not measure scoops or want something for a gym bag. Caveat: at about 83p a day it costs five to ten times more than a tested tub.

Bare Biology High Flyer: best premium

Each 5g scoop is Creavitalis creatine, made in Germany by AlzChem, and the brand says it tests every batch. Its advice to start at 2.5g a day if you are prone to water retention is sensible. Caveat: testing is commissioned by the brand rather than a public scheme, and pouch size is not clearly stated, so cost per day is hard to compare.

Free Soul Pure Creatine: simple starter pack

A plain micronised monohydrate from a UK women's brand at £12.49 for two months, with 3.4g daily directions. Caveat: no raw material or third-party certification is shown. Creatine is not different for women, so do not pay extra for "female" marketing.

What does the evidence say about creatine?

Muscle and strength

Creatine is one of the best-studied supplements there is. Across many trials, people who take it while doing resistance training gain a little more strength and lean mass than those training alone. Great Britain's register of authorised health claims allows two creatine claims: that 3g a day improves performance in repeated short bursts of high-intensity exercise, and that 3g a day enhances the effect of resistance training on muscle strength in adults over 55.

That second claim matters for longevity. A 2025 meta-analysis of older adults found creatine plus training improved leg strength and lean mass more than training alone, though not upper-body strength. The key word is training: creatine without exercise does very little.

Memory and the brain

Your brain also uses creatine. A 2024 meta-analysis of 16 small trials found modest gains in memory, attention and processing speed, with no change in overall cognition or executive function (planning and decision-making). Effects looked larger in people with health conditions. This is a genuinely interesting area, but the trials are short and small.

Safety

The kidney meta-analysis found creatine raises creatinine (a blood marker) slightly without changing other measures of kidney function. That matters because a raised creatinine can look like kidney trouble on a routine blood test. Tell whoever orders your bloods that you take creatine.

Note on funding: much creatine research is published by sports nutrition scientists, several of whom advise supplement companies, including the maker of Creapure. The main findings have been reproduced widely, but it is worth knowing.

Who should be careful with creatine?

• People with kidney disease, or taking medicines that affect the kidneys: speak to your GP first.
• Pregnant or breastfeeding women: there is not enough safety data.
• Under-18s: there is much less research, so speak to a GP or sports dietitian first.
• Anyone who notices bloating: try 3g rather than 5g, and skip loading phases.

What to avoid

• "Creatine blends" that hide the creatine dose inside a proprietary mix.
• Gummies, unless you check the creatine per gummy: you often need several a day to reach 3g, and they add sugar or sweeteners.
• Premium forms (HCl, buffered, nitrate) sold as "better absorbed". They cost more and have not outperformed monohydrate in head-to-head trials.
• Very high doses: there is no benefit above about 5g a day for most people.

Bottom line

Creatine monohydrate is one of the few supplements with strong evidence behind it, especially for keeping strength as you age, provided you also lift or do resistance exercise. Buy plain monohydrate, take 3 to 5g a day, and choose a product with Informed Sport or Informed Choice testing. The Applied Nutrition unflavoured tub gives you that at about 15p a day; Myprotein is cheaper still. Treat brain benefits as a possible bonus, not a reason to buy.