Myprotein Creatine vs Optimum Nutrition Creatine: Which to Buy?

Quick Verdict

Both products contain creatine monohydrate — the same proven ingredient. Optimum Nutrition uses Creapure-certified creatine with guaranteed purity. Myprotein costs significantly less. For most people, the cheaper option is the smarter buy.

Product Comparison

Factor	Myprotein Creatine Mono	ON Micronised Creatine
Type	Creatine monohydrate	Creatine monohydrate
Creapure certified	No	Yes
Serving size	5g (1 scoop)	3.4g (1 scoop)
Protein	0g	0g
Other ingredients	None	None
Micronised	No	Yes
Flavoured options	Unflavoured only	Unflavoured only

Both are unflavoured, pure creatine monohydrate with no fillers, sugars, or additives. The active ingredient is identical.

Price Comparison

Size	Myprotein	Optimum Nutrition
~500g	~£17	~£20 (317g)
Cost per 5g serving	~£0.17	~£0.32
Monthly cost (5g/day)	~£5.10	~£9.60
Annual cost	~£62	~£115

Myprotein is roughly half the price per serving. Over a year, that’s a saving of about £53 — enough to buy several months of extra supply.

What Is Creapure?

Creapure is a brand of creatine monohydrate manufactured by AlzChem in Germany. It’s produced using a patented process and tested for impurities like dicyandiamide (DCD) and dihydrotriazine (DHT). Creapure certification means:

• Manufactured in a dedicated facility in Germany
• Batch-tested for contaminants
• Guaranteed 99.99% pure creatine monohydrate

This doesn’t mean non-Creapure creatine is impure — it just hasn’t been through the same testing process.

Does Micronised Matter?

ON’s creatine is micronised, meaning the particles are ground finer. This improves mixability — it dissolves more quickly and leaves less grit at the bottom of your glass. Myprotein’s non-micronised powder is slightly grittier but still mixes adequately with a good stir or shake.

If you’re mixing creatine into a protein shake or smoothie, you won’t notice the difference. If you’re stirring it into water alone, micronised is noticeably smoother.

Packaging

Myprotein uses resealable foil pouches (250g, 500g, 1kg). ON uses plastic tubs (144g, 317g, 634g). Both seal well. ON’s tub is more convenient for daily scooping; Myprotein’s pouch takes up less shelf space.

Note that ON’s scoop delivers 3.4g, not the recommended 5g. You’ll need a heaped scoop or a scoop-and-a-half to hit the optimal daily dose.

Quality and Testing

Myprotein products are manufactured in the UK and many carry Informed Sport certification (third-party tested for banned substances). ON is manufactured across multiple global facilities with its own quality assurance programme. Both brands are reputable with long track records.

Who Each Product Suits

Choose Myprotein if you:

• Want the lowest cost per serving
• Are happy with standard (non-micronised) powder
• Already order from Myprotein regularly
• View creatine as a commodity ingredient (which it essentially is)

Myprotein Creatine Monohydrate

Choose Optimum Nutrition if you:

• Want Creapure-certified purity
• Prefer micronised powder for better mixing
• Value the reassurance of third-party purity testing
• Don’t mind paying a premium for peace of mind

Optimum Nutrition Micronised Creatine

Final Recommendation

Creatine is creatine. Both products contain the same molecule and will produce the same results. Myprotein is the rational choice for most people — save your money and spend it on food instead. If purity certification genuinely matters to you (competitive athletes subject to testing, for example), ON’s Creapure certification is worth the premium.

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