Micronised Creatine Monohydrate 317g
by Optimum Nutrition
Optimum Nutrition's Micronised Creatine Monohydrate is a 100% pure creatine monohydrate powder from one of the most established names in sports nutrition, with micronisation intended to improve particle solubility and reduce gastrointestinal discomfort versus standard creatine. Best for Strength and power athletes seeking well-evidenced performance gains and Gym-goers focused on high-intensity or resistance training output.
According to the AIScored 0–100 scoring system, Micronised Creatine Monohydrate 317g by Optimum Nutrition scores 65.0/100, ranking #22 out of 32 products in Creatine (2026). Strongest category: Effectiveness (78.0/100). Weakest: Certifications (33.0/100).
Is Micronised Creatine Monohydrate 317g worth buying?
“Optimum Nutrition's micronised creatine monohydrate is backed by more research than pretty much any other supplement you'll buy, and a 65/100 score shows it's reliably manufactured by a trusted brand. The smaller particles dissolve better than standard creatine, which makes a real difference if you're taking it daily.”
What Do Reviewers Say About Micronised Creatine Monohydrate 317g?
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 317g score?
Detailed score breakdown and key findings from our analysis of 12 reviews across 2 sources.
Pros
- +Creatine monohydrate is the most extensively researched ergogenic aid — performance benefits are well-established
- +Optimum Nutrition is a long-standing, reputable brand with consistent manufacturing history
- +Micronised particle size improves surface area and theoretical mixability over standard creatine
- +Unflavoured format integrates easily into existing shake or juice routines
- +Long-term users report reliable, repeatable results with no need to switch brands
Cons
- -Multiple users report incomplete dissolution in cold water, leaving gritty residue — contradicts product claims
- -Gastrointestinal upset reported even at sub-full doses by some users
- -Not third-party tested (no Informed Sport or NSF certification); contains a gluten allergen
- -At least one batch reported with a strong, unpleasant smell — possible quality control variability
Best For
Watch Out
- !Contains gluten — unsuitable for individuals with coeliac disease or gluten intolerance
- !No third-party certification — not recommended for athletes subject to anti-doping testing without verification
- !Dissolution in cold water may be incomplete despite micronisation; try warm water or a shaker bottle
- !Those with GI sensitivity should start below the recommended 3.4 g dose and ensure high water intake
What is Micronised Creatine Monohydrate 317g?
Micronised Creatine Monohydrate 317g is a creatine product by Optimum Nutrition in powder form, scoring 65.0/100 on AIScored.
- • What Is It: Support your physical performance with Optimum Nutrition Micronised Creatine Monohydrate, a 100% pure creatine monohydrate powder micronised to increase particle surface area, improving solubility and reducing stomach discomfort.
- • Key Benefits: Contains 100% pure creatine monohydrate to help replenish muscle creatine stores during short, intense efforts.
- • Micronised to increase particle surface area about 20‑fold, enhancing solubility and improving mixability.
- • Proven to increase physical performance in successive bursts of short‑term, high‑intensity exercise.
- • Unflavoured format ideal for stacking and adding to shakes or juice to suit your supplementation routine.
- • How To Use: Add 3.4 g (~1 level scoop) to 240 ml of cold water and mix until the powder is dissolved; consume one serving per day as the recommended intake, incorporating the prepared drink into your daily supplementation routine.
- • Key Ingredients: Micronised creatine monohydrate (100% pure): a well‑researched compound that helps fuel muscles by supporting rapid ATP production during short‑term, high‑intensity exercise and successive bursts of activity.
Is Micronised Creatine Monohydrate 317g 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 317g Compare?
See how this product stacks up against the top-rated creatine in our database.
| Product | Score | Price |
|---|---|---|
| Micronised Creatine Monohydrate 317g (this) | 65.0 | £20.00 |
| Bulk Creatine Monohydrate (Creap... | 91.0 | £16.99 |
Price History (90 days)
Quick Facts
- Form
- Powder
- Vegan
- No
Frequently Asked Questions
Is Micronised Creatine Monohydrate 317g worth buying in 2026? ▼
What is the best price for Micronised Creatine Monohydrate 317g in the UK? ▼
What are the pros and cons of Micronised Creatine Monohydrate 317g? ▼
Is Micronised Creatine Monohydrate 317g third-party tested? ▼
How does Micronised Creatine Monohydrate 317g 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.