NOW Sports Creatine Monohydrate Powder 750g vs Optimum Nutrition Micronized Creatine Powder 317g
Side-by-side comparison of scores, ingredients, prices and real customer feedback for NOW Sports Creatine Monohydrate Powder 750g and Optimum Nutrition Micronized Creatine Powder 317g.
Last verified: 07 Apr 2026 · Based on 30 reviews
NOW Sports Creatine Monohydrate Powder 750g scores 83.0/100 vs Optimum Nutrition Micronized Creatine Powder 317g at 79.0/100. NOW Sports Creatine Monohydrate Powder 750g wins on effectiveness, value for money. Optimum Nutrition Micronized Creatine Powder 317g is stronger on ingredient quality and side effects.
Which is better: NOW Sports Creatine Monohyd... or Optimum Nutrition Micronize...?
NOW Sports wins with an 83 vs 79 score and a larger 750g tub delivering 150 proper 5g servings — better value and a more practical daily dose. Optimum Nutrition suits competitive athletes who require Informed Choice batch-testing certification for drug-tested sport.
— AIScored Editorial Team
How Do the Scores Compare?
NOW Sports Creatine Monohyd...
NOW Sports
|
Optimum Nutrition Micronize...
Optimum Nutrition
|
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|---|---|---|
| Overall Score | 83.0 | 79.0 |
| Effectiveness |
82.0/100
Best
|
77.0/100 |
| Ingredient Quality | 86.0/100 |
92.0/100
Best
|
| Value for Money |
80.0/100
Best
|
68.0/100 |
| Side Effects | 87.0/100 |
91.0/100
Best
|
| Certifications | 82.0/100 |
86.0/100
Best
|
| Best Price | View → |
£16.00
Amazon UK →
Cheapest
|
| Price per Serving | N/A | £0.17 93 servings |
| Form | N/A | Powder |
| Dose | N/A | 3.4g creatine monohydrate per serving (approx 3g pure creatine) |
| Third-Party Tested | ✗ No | ✓ Yes |
| Reviews Analysed | 12 | 18 |
NOW Sports Creatine Monohydrate ...
Pros
- ✓Pure creatine monohydrate — the most research-backed form for strength and power gains
- ✓NOW Sports is GMP-certified and routinely third-party tested for purity and label accuracy
- ✓750g provides approximately 150 servings at 5g/day — strong value for money
- ✓Reported as easy to mix with no notable side effects
Cons
- ✗One reviewer noted the container feels small relative to the price point, suggesting packaging perception issues
- ✗No flavoured option — some users prefer flavoured creatine for palatability
- ✗Creatine monohydrate can cause mild water retention and bloating in some individuals during loading phases
- ✗No loading protocol guidance included — beginners may be unsure how to dose
Best For
Optimum Nutrition Micronized Cre...
Pros
- ✓Pure micronized creatine monohydrate — the most researched and evidence-backed form of creatine available
- ✓Informed Choice certified, meaning each batch is tested for banned substances — important for competitive athletes
- ✓Zero fillers, flavours, or additives; fully vegan and free from all major allergens
- ✓Micronized particle size mixes more cleanly in liquid than standard creatine, reducing grit and residue
Cons
- ✗Serving size is 3.4g, which falls short of the 5g daily dose used in virtually all clinical efficacy studies — users need to scoop ~1.5 servings to hit the research-backed dose, reducing the effective yield to roughly 62 servings rather than 93
- ✗No loading protocol guidance on the label; new users unfamiliar with creatine may under-dose
- ✗Premium brand pricing means cheaper certified alternatives exist at the same or higher dose per gram
- ✗One Trustpilot submission flagged dismissive customer service, suggesting post-sale support may be inconsistent
Best For
What does the data say about NOW Sports Creatine Mo... vs Optimum Nutrition Micr...?
NOW Sports Creatine Monohydrate Powder 750g beats Optimum Nutrition Micronized Creatine Powder with an overall score of 83/100 against 79/100. The main differences sit in the serving sizes and actual creatine delivered. NOW Sports gives a straight 5g dose of creatine monohydrate per serving which matches the amount used in most studies on strength gains. Optimum Nutrition lists 3.4g per scoop but that only contains about 3g of pure creatine so you need one and a half scoops to hit the proper research dose. This cuts the 317g tub down from 93 servings to roughly 62. Both come as unflavoured powder that mixes into shakes or water yet the NOW version feels bulkier in the hand while the Optimum one dissolves a touch easier thanks to micronisation.
Gym users chasing clear performance lifts should grab the NOW Sports tub. It scores 82/100 on effectiveness compared with 77/100 for Optimum Nutrition and offers far better value at 80/100 versus 68/100. The larger 750g size stretches to 150 daily servings which suits intermediate and advanced lifters who train consistently. Competitive athletes who need banned substance certification will prefer Optimum Nutrition because of its Informed Choice stamp and higher 92/100 ingredient quality rating. Those on tight budgets or who simply want the exact 5g dose without extra maths will feel happier with NOW Sports.
Practical stuff matters too. Neither product contains flavours so expect a plain chalky taste that disappears in fruit juice or a protein shake. Both stay free from major allergens and suit vegan diets. The Optimum Nutrition powder works well for people who already make big daily shakes and do not mind adjusting the scoop. NOW Sports wins for anyone who hates measuring twice or running out mid cycle.
NOW Sports Creatine Monohydrate Powder is a pure, unflavoured creatine supplement from one of the most established names in sports nutrition, backed by decades of scientific evidence supporting creatine's role in improving strength, power output, and muscle recovery.
What are the key differences?
Frequently Asked Questions
Which is better, NOW Sports Creatine Monohydrate Powder 750g or Optimum Nutrition Micronized Creatine Powder 317g? ▼
Is NOW Sports Creatine Monohydrate Powder 750g worth the price compared to Optimum Nutrition Micronized Creatine Powder 317g? ▼
Which has fewer side effects? ▼
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What the Data Says
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 data-driven comparisons based on publicly available reviews. This is not medical advice. Affiliate links may earn us a commission at no extra cost to you.
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