Myprotein Creatine Monohydrate Review: Cheap, Proven, Hard to Beat

Myprotein Impact Creatine Monohydrate is the brand's standard micronised creatine powder, and for a lot of UK lifters it is the first supplement they ever buy. It is aimed at anyone doing resistance training, sprint or team sports, or just wanting more out of their sessions: beginners after a cheap, proven first supplement, and experienced trainers who refill a big tub and never think about it again. The headline verdict is simple. This is honest, no-frills creatine monohydrate at a very low price per serving, and because creatine is one of the few supplements that genuinely works, that combination is hard to argue with.

There is not much to dress up here, which is the point. Creatine monohydrate is the most researched and most effective legal performance supplement available, and the form Myprotein sells is the same compound used in the studies. What you are really buying is purity, a sensible dose and value, and on all three the standard Impact powder holds up well. The micronised grind helps it mix better than cheap coarse creatine, and the unflavoured tub stacks into anything. If you want extra reassurance on purity, Myprotein also sells a Creapure version (THE Creatine), which we cover below.

Who it is for

This is for anyone who lifts, sprints or plays a repeated high-intensity sport and wants the most reliable supplement upgrade for the least money. Creatine helps your muscles regenerate energy for short, hard efforts, so it suits strength work, sprint intervals, and anything with repeated explosive bursts. The standard Impact powder is the right pick if you want the cheapest proven creatine and do not mind a touch of grit in the glass. If purity certification matters to you, or you compete and want tighter batch testing, the Creapure version is the one to look at instead. It is not a pre-workout, so if you are chasing an energy and focus hit before training, see our best pre-workout UK guide for that job instead.

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What you are actually buying

The active ingredient is creatine monohydrate, micronised so the particle size is smaller and it disperses more evenly in liquid. Myprotein lists the standard Impact powder at a 3g serving, which is a genuine effective maintenance dose, though plenty of users simply take a slightly heaped measure to land closer to 5g. The unflavoured tub is just creatine and nothing else, which is exactly what you want from a creatine product. Flavoured tubs (Blue Raspberry is the common one) add flavouring and sweetener for people who take it straight in water.

The Creapure variant, sold as THE Creatine, is worth understanding because the two get confused. Creapure is a branded creatine made in Germany to a certified 99.9 percent purity with strict batch testing, and Myprotein's Creapure tubs use a 5g serving. The everyday Impact powder is good quality micronised monohydrate but does not carry the Creapure name. Both deliver the same compound your muscles use, so the choice comes down to whether the purity certification is worth a few extra pence per serving to you.

Mixing, dosing and what to expect

In practice the micronised powder behaves like good creatine should. It stirs into juice or a protein shake with minimal fuss, and dropped into warm water it disperses better still. What it will not do is vanish completely in cold water, because no creatine monohydrate truly dissolves. You get a fine layer of grit at the bottom of the glass, so swirl it and drink it down rather than letting it settle. This is normal for every monohydrate, not a Myprotein flaw, but it is the most common owner grumble so it is worth setting expectations.

On dosing, the research is refreshingly clear. A daily 3 to 5g maintenance dose saturates your muscles over roughly three to four weeks, and an optional loading phase of around 20g a day split into four servings for five to seven days gets you there faster. The International Society of Sports Nutrition's position stand concludes that creatine monohydrate is the most effective supplement available for increasing high-intensity exercise capacity and lean mass during training, and that it is safe and well tolerated at these doses over the long term (ISSN position stand, 2017). A 2024 systematic review and meta-analysis likewise found creatine supplementation improves both upper and lower body strength alongside resistance training (upper and lower body strength meta-analysis, 2024).

A couple of honest caveats. The main side effect people notice is a small bump in scale weight in the first weeks, which is water drawn into the muscle and not fat. Some people get mild stomach upset, almost always during heavy loading rather than a steady 3 to 5g a day, so if your gut is sensitive, skip loading and just take the maintenance dose (creatine and lean mass meta-analysis, 2021). Creatine is not a stimulant and does not give you an immediate buzz, so judge it over weeks of consistent training, not by how you feel on day one.

Value

This is where Myprotein creatine wins most clearly. On the larger 1kg tub the cost per serving drops to only a few pence, which puts it among the cheapest creatines in the UK at the time of writing, especially when Myprotein runs one of its frequent discount codes or when the Amazon tub is on offer. Because the active ingredient is identical to creatine costing several times more, you are paying for a brand and certification, not a better molecule, when you go pricier. The one exception is the Creapure version, where the higher price does buy you certified purity and tighter testing, which some people reasonably want.

Stacking is easy too. Unflavoured creatine disappears into a post-workout protein shake without changing the taste, so it pairs neatly with whatever you already use. If you are still choosing a protein, our best protein powder UK guide covers the options, and Myprotein's own whey sits alongside this creatine in a lot of UK cupboards. For the full picture of how this stacks up against rival creatines, see our best creatine UK guide, and you will find more supplement reviews in our nutrition section.

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