Size
Optimum Nutrition Micronised Creatine Powder
Pure micronised creatine monohydrate with no additives or fillers. Micronising improves mixability so it stays suspended in liquid.
Creatine increases physical performance in successive bursts of short-term, high-intensity exercise; the beneficial effect is obtained with a daily intake of 3g.
At a glance
£0.24
per 5g creatine
Strong
evidence for creatine monohydrate
Our honest take
Pure micronised creatine monohydrate from one of the best-known brands. One level 3.4 g scoop gives 3 g of creatine, the amount the authorised claim is based on. It is the best-selling creatine on Amazon UK, with very good reviews, and the larger tubs are good value.
- You want plain creatine from a trusted, popular brand
- You want a 3 g daily dose from one scoop
- You want a 5 g dose from one scoop
The science
Creatine monohydrate· evidence: Strong
Creatine monohydrate is the most studied sports supplement there is, with hundreds of controlled trials in people over more than 30 years. It is also the form used in almost all of that research, which is why we treat it as the benchmark other creatine forms have to beat.
The effect builds up as your muscle creatine stores fill, which takes roughly three to four weeks at a steady daily dose, or about a week if you choose to load. You do not need to load or to cycle off.
Research into other uses, such as effects on the brain or on mood, is at an early stage and not established, so we make no claims about them.
Creatine increases physical performance in successive bursts of short-term, high intensity exercise. The beneficial effect is obtained with a daily intake of 3 g of creatine.
Daily creatine consumption can enhance the effect of resistance training on muscle strength in adults over the age of 55 years. The beneficial effect is obtained with a daily intake of 3 g of creatine, together with resistance training that increases in workload over time and is repeated at least three times a week for several weeks, at an intensity of at least 65–75% of one repetition maximum.
Typical dose: 3–5 g a day, taken every day
Safety: Well tolerated by healthy adults at 3–5 g a day. Expect a small gain in body weight (water held in muscle) in the first weeks. Larger doses taken at once can upset the stomach. Creatine can raise creatinine on a blood test, so tell your doctor you take it. Speak to your GP first if you have a kidney condition.
Research we looked at:
Kreider RB et al. (2017). ISSN position stand: safety and efficacy of creatine supplementation. J Int Soc Sports Nutr 14:18.
Antonio J et al. (2021). Common questions and misconceptions about creatine supplementation. J Int Soc Sports Nutr 18:13.
EFSA NDA Panel (2011). Scientific opinion on creatine and physical performance. EFSA Journal 9(7):2303.
GB Nutrition and Health Claims Register: authorised claims for creatine.
Ingredients & nutrition
Always check the pack you receive, as manufacturers sometimes update recipes.
How to use
What buyers are saying
Very highly rated on Amazon UK, with over 20,000 ratings. Buyers most often say it mixes cleanly, tastes of nothing, is good value and helps their strength and training. The few complaints are that some feel little difference, and some find it leaves a slight residue.
Our own summary of the Amazon UK listing for this product (about 21,900 ratings), read 9 October 2026. These are not SupplementHQ customer reviews, and we include the complaints as well as the praise.
Price per dose & how it compares

| Product | Size | Price | Per 5g creatine |
|---|---|---|---|
| This product | 187g | £14.99 | £0.40 |
| This product | 317g | £19.99 | £0.32 |
| This product | 634g | £29.99 | £0.24 |
| Applied Nutrition Creatine Monohydrate Micronized | from £11.48 | £0.18 | |
| Animal Creatine Powder | from £21.99 | £0.22 | |
| NOW Foods Creatine Monohydrate | from £11.59 | £0.19 |
Cost per 5g lets you compare different sizes and formats fairly.Worked out from our current prices.
Food supplements should not replace a varied, balanced diet and healthy lifestyle. General information, not medical advice. Speak to your GP or pharmacist first if you are pregnant or breastfeeding, have a medical condition or take medication.
Pure micronised creatine monohydrate with no additives or fillers. Micronising improves mixability so it stays suspended in liquid.
Creatine increases physical performance in successive bursts of short-term, high-intensity exercise; the beneficial effect is obtained with a daily intake of 3g.
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