Micronised Creatine Monohydrate 634g
by Optimum Nutrition
Optimum Nutrition Micronised Creatine Monohydrate is a pure, single-ingredient creatine powder from one of the most established names in sports nutrition. Best for Strength athletes and weightlifters and High-intensity sport athletes (sprinters, team sport players).
According to the AIScored 0–100 scoring system, Micronised Creatine Monohydrate 634g by Optimum Nutrition scores 68.0/100, ranking #19 out of 32 products in Creatine (2026). Strongest category: Effectiveness (78.0/100). Weakest: Certifications (40.0/100).
Is Micronised Creatine Monohydrate 634g worth buying?
“Optimum Nutrition's Micronised Creatine Monohydrate scores 68/100 and provides the most research-backed form of creatine for strength, with its micronised texture dissolving better than standard powder. Users repurchase it regularly for consistent results, though it sits in the middle tier rather than among the top-performing creatine options.”
What Do Reviewers Say About Micronised Creatine Monohydrate 634g?
Sample excerpts from currently available source material used in this product analysis.
"I've bought this before and been absolutely fine no taste. However, this time it has a very strong smell. really unpleasant to consume ."
"I’ve been using Optimum Nutrition Micronised Creatine Powder - Unflavoured for a long time now, and I always come back to it. It’s one of those supplements that just works, no drama, no gimmicks — just reliable results. his is my go-to crea..."
"Read good reviews on taking creatine Used to take it a lot when lifting weights many years ago and always found it a benefit. Now appears to be a good healthy product overall. Looking forward to seeing good results again"
"The product information states: "Unflavoured, perfect for stacking, this powder mixes easily and unlike many other creatine powders, it has no gritty taste or texture" This, from my experience is completely false. The powder does not dissol..."
"Great item, no problem with seller at all, but the Amazon driver was not so good, I followed him on the map, he didn't even look at my instructions let alone follow them, he just quickly pulled up to the wrong place and delivered to wrong s..."
How does Micronised Creatine Monohydrate 634g score?
Detailed score breakdown and key findings from our analysis of 12 reviews across 2 sources.
Pros
- +Creatine monohydrate is the most research-backed form for improving high-intensity performance
- +Multiple long-term users repurchase repeatedly, citing reliable and consistent results
- +Micronisation increases surface area and generally improves dissolution vs standard creatine powder
- +Unflavoured and stackable — mixes cleanly with protein shakes or pre-workouts
- +Trusted brand with strong manufacturing heritage (Optimum Nutrition / Glanbia)
Cons
- -At least one reviewer found it gritty and undissolved despite the product's explicit anti-grit claims
- -GI upset reported even at small doses — a known risk with creatine for sensitive users
- -One batch reported a strong, unpleasant smell — possible quality control inconsistency
- -Not third-party tested and no Creapure certification mentioned; allergen cross-contamination risk (milk, gluten, egg, soy, nuts)
Best For
Watch Out
- !Serving size is 3g creatine — below the 5g/day clinically effective dose; users may need to double-scoop
- !Solubility experience varies widely between reviewers — stir vigorously or use warm liquid
- !GI discomfort possible, especially if taken on an empty stomach
- !Not suitable for strict allergen-free users — may contain milk, gluten, egg, soy, peanuts and nuts
What is Micronised Creatine Monohydrate 634g?
Micronised Creatine Monohydrate 634g is a creatine product by Optimum Nutrition in powder form, scoring 68.0/100 on AIScored.
- • What Is It: Support your physical performance with Optimum Nutrition Micronised Creatine Monohydrate, a 100% pure creatine monohydrate micronised to improve solubility and accessibility.
- • Each serving provides 3g of creatine to help boost high‑intensity performance.
- • Key Benefits: Delivers 3g of creatine per serving to help increase physical performance during short, high‑intensity exercise.
- • Micronised to increase molecule surface area around 20 times on average, enhancing solubility and accessibility.
- • Made from 100% pure creatine monohydrate in an unflavoured powder, ideal for stacking and customisation.
- • How To Use: Add 3.4 g (~1 level scoop) to 240 ml of cold water and mix until the powder is dissolved; consume the prepared drink once daily as the recommended consumption of 1 serving per day.
- • Key Ingredients: Creatine monohydrate (micronised) - a well‑researched form of creatine that helps replenish muscle creatine stores and supports energy regeneration during short, high‑intensity exercise; micronisation improves solubility and reduces stomach discomfort.
What's Inside Micronised Creatine Monohydrate 634g?
Micronised Creatine Monohydrate 634g contains 3 active ingredients: Per, Creatine Monohydrate, Creatine.
Active Ingredients
- Per
- 3.4g (1 Scoop)
- Creatine Monohydrate
- 3.4g
- Creatine
- 3.0g
Other Ingredients
Creatine Monohydrate.May Contain: Milk, Gluten, Egg, Soy, Nuts and Peanuts.
Is Micronised Creatine Monohydrate 634g Independently Tested?
No Third-Party Testing Visible
We could not find evidence of independent third-party testing for this product. This doesn't mean it's unsafe, but independent verification provides additional assurance.
How We Score Supplements
Our methodology analyses review data, ingredient science, and product information, then scores each product on a 0-100 scale across evidence-based categories:
Effectiveness
How well the product delivers its claimed benefits, based on reviews and ingredient evidence.
Ingredient Quality
Bioavailable forms, clinically effective dosages, clean label, minimal fillers.
Value for Money
Price relative to ingredient quality, dosage count, and effectiveness.
Side Effects Profile
Higher score = fewer side effects. 100 means virtually no adverse reactions reported.
Certifications & Testing
Third-party lab testing, GMP certification, and independent quality verification.
Overall Score
Weighted combination of all factors. Our bottom-line recommendation.
How Does Micronised Creatine Monohydrate 634g Compare?
See how this product stacks up against the top-rated creatine in our database.
| Product | Score | Price |
|---|---|---|
| Micronised Creatine Monohydrate 634g (this) | 68.0 | £29.49 |
| Bulk Creatine Monohydrate (Creap... | 91.0 | £16.99 |
Price History (90 days)
Quick Facts
- Form
- powder
- Serving
- 3 g
- Vegan
- No
Frequently Asked Questions
Is Micronised Creatine Monohydrate 634g worth buying in 2026? ▼
What is the best price for Micronised Creatine Monohydrate 634g in the UK? ▼
What are the pros and cons of Micronised Creatine Monohydrate 634g? ▼
Is Micronised Creatine Monohydrate 634g third-party tested? ▼
How does Micronised Creatine Monohydrate 634g compare to Bulk Creatine Monohydrate (Creapure) 500g? ▼
What the Data Says About Creatine
Why do 87% of UK creatine products lack third-party certification?
87% of UK creatine products have zero independent certification. Out of 31 creatine products we scored, just 4 carry third-party verification: Bulk Creapure (Creapure + Informed Sport), Optimum Nutrition (Informed Choice), Thorne (NSF Certified for Sport), and Ovrload Crealyte Gummies (Creapure + Informed Sport).
The quality gap is real. Certified creatine scores 77.2/100 on average. Uncertified creatine scores 67.5. That's a 9.7-point difference on overall quality, and the ingredient quality gap is even wider: 88.5 vs 70.9.
Why so few? Third-party testing costs money, and UK regulations don't require it for sports supplements. Brands that invest in certification tend to use higher-grade raw materials too. Bulk Creapure, our top-scoring creatine at 91/100, uses Creapure-branded monohydrate manufactured in Germany with documented purity testing. Most budget creatine powders don't disclose where their creatine comes from or whether it's been independently verified.
If purity matters to you, look for one of these four certifications on the label: Creapure, Informed Sport, Informed Choice, or NSF Certified for Sport.
Is creatine monohydrate better than HCL or other forms?
Monohydrate wins. The top 5 creatine products in our database are all monohydrate-based, led by Bulk Creapure at 91/100. That's not a coincidence.
Creatine monohydrate has decades of clinical research behind it. Over 500 published studies confirm its effects on muscle strength, power output, and recovery. HCL, ethyl ester, and buffered forms have far less evidence, and none have been shown to outperform monohydrate in head-to-head trials.
The 'better absorption' claim for HCL sounds compelling, but there's limited independent data to support it at the doses you'd actually take. Monohydrate is also the cheapest form by a wide margin.
The bloating concern with monohydrate is real for some people, but it's usually a loading-phase issue. Starting at 3-5g daily (no loading phase) avoids it for most users.
Disclaimer: AIScored provides research-backed summaries based on publicly available reviews and product information. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Affiliate links may earn us a commission at no extra cost to you.
What Are Other Top Creatine?
Other top-rated creatine you might want to compare.
Feedback & Suggestions
Spotted an issue? Wrong price, incorrect data, or something else off? Let us know and we'll fix it.
Missing a product you'd like us to review? Tell us the product name and we'll consider adding it.