Optimum Nutrition vs MyProtein Creatine.
Our independent head-to-head review of Optimum Nutrition Micronised Creatine and MyProtein Impact Creatine x Chupa Chups, scored on dose, ingredient quality, value and buyer sentiment so you can pick the right tub with confidence.
Optimum Nutrition
Micronised Creatine
MyProtein
Impact Creatine x Chupa Chups
Delivers 5 grams of creatine monohydrate per serving
Carries Informed Choice certification for third-party purity testing
Micronised form mixes into water or shakes without clumping
How the numbers stack up against the price
Optimum Nutrition Micronised Creatine and MyProtein Impact Creatine x Chupa Chups are the two most-bought generic creatine monohydrates in the UK. Optimum Nutrition Micronised Creatine Powder delivers 5 grams of creatine monohydrate per serving and carries Informed Choice certification for banned-substance testing. MyProtein Impact Creatine delivers 3 grams per serving and does not carry an Informed Sport mark, though it is substantially cheaper per tub.
Micronised CreatineImpact Creatine x Chupa ChupsCreapure certified
Informed Sport tested
WheyWise score
Out of 5
The decision turns on two things: daily dose and third-party testing. Creatine research establishes 3 to 5 grams per day as the saturation threshold for muscle creatine stores. The Optimum Nutrition scoop hits that threshold in one serving; the MyProtein scoop needs roughly two servings to match it, which narrows the real-world price gap. Competitive athletes who get tested need the Informed certification, so Optimum Nutrition wins that tier. Everyone else should run the maths on cost per 5 gram dose, not cost per tub.
Ingredients, line by line.
Every ingredient on each label, classified. Approved means nutritionist-positive sources or actives. Neutral is functional (binders, anti-caking, flavouring). Watch flags additives many buyers want to limit.
- Creatine monohydrate (micronised)
- Creatine monohydrate (micronised)