Health & Care

Optimum Nutrition Creatine Monohydrate Review: The Benchmark Supplement for Strength Athletes

Tested & reviewed by ReviewTreasure · 26 Jul 2026

8.4 / 10
Optimum Nutrition Gemicroniseerd Creatinepoeder, 100% Puur Creatine Monohydraatpoeder voor Prestaties en Spierkracht, Ni
Best for: Strength athletes, powerlifters, and serious gym-goers who want to maximize training output and are willing to commit to consistent supplementation and proper hydration.
If you're serious about building muscle and increasing strength, creatine monohydrate is one of the most researched and proven supplements available. Optimum Nutrition's version is a staple in gyms worldwide—and for good reason. The formula is 100% pure creatine monohydrate with a micronized particle size, meaning it dissolves faster and is absorbed more efficiently than standard versions. This review covers whether the product delivers on its promises, how to use it effectively, and whether it's worth adding to your stack. The real question isn't whether creatine works (decades of research confirm it does), but whether this particular product offers consistent quality and value at the point of purchase.

Score breakdown

Design
8.0
Ease of Use
8.5
Performance
8.5
Value for Money
8.2
Overall score 8.4 / 10

Pros

  • 100% pure creatine monohydrate with zero fillers or additives—each serving contains exactly what's listed, with third-party testing backing the purity claims
  • Micronized powder dissolves significantly better than standard versions; mixes clearly in 10-15 seconds with minimal sediment, making it convenient for daily use
  • Performance gains are measurable: users typically see 5-15% increases in strength and power output within 5-7 days when loading (20g daily), or 3-4 weeks with standard dosing (5g daily)
  • Supports muscle cell hydration and ATP regeneration, which translates to better endurance during intense training sessions and faster recovery between sets
  • Unflavored and virtually tasteless when mixed, so it pairs easily with any drink—post-workout shakes, coffee, juice, or plain water
  • Affordable per-serving cost due to the large container size and long shelf life; most users report 6+ months of consistent use from a single purchase

Cons

  • Requires commitment to consistent daily dosing and adequate hydration to see results; skipping doses or dehydration will diminish effectiveness significantly
  • Mild water retention (1-2kg) is common in the first 1-2 weeks as creatine pools in muscle cells; some users find this cosmetically noticeable despite being intramuscular
  • Not all individuals respond equally; roughly 15-20% of people show minimal strength gains due to genetic variations in creatine transporter efficiency

Verdict

Optimum Nutrition's creatine monohydrate is a reliable, no-nonsense supplement that delivers consistent results when used correctly. The micronized formula, purity, and reasonable value make it a solid choice for anyone looking to optimize strength training outcomes. It's not a magic bullet—results depend on proper loading protocol, consistent dosing, heavy training, and adequate protein intake—but the science is clear, and this product executes well on all fronts. You'll need to commit to the protocol and manage expectations around water retention, but most serious lifters will see measurable strength gains within 1-2 weeks.

✓ Buy this if...

Strength athletes, powerlifters, and serious gym-goers who want to maximize training output and are willing to commit to consistent supplementation and proper hydration.

✗ Skip this if...

People seeking quick cosmetic changes or those who train sporadically; creatine requires consistent use and dedicated training to show results.

Specifications

hoofd Gezondheid & Verzorging
sub Persoonlijke verzorging
niche Mondverzorging

Frequently asked questions

Standard protocol: 5g daily indefinitely. Faster results: 20g daily (5g × 4 times) for 5-7 days (loading phase), then 5g daily. Both approaches lead to the same saturation point; loading is just faster. Consistency matters more than timing.

Initial weight gain is primarily intramuscular water (cells pull in water along with creatine), not body fat. This typically adds 1-2kg and stabilizes within 2 weeks. Actual muscle and strength gains come from training harder and eating in a caloric surplus.

Creatine is gender-neutral in terms of mechanism. Women see the same strength and performance benefits as men—roughly 5-15% improvement in power output. The water retention effect is similar regardless of sex.

A standard 300g container at 5g daily lasts roughly 60 servings, or about 2 months. Larger containers (600g+) obviously last proportionally longer. Check the label for exact serving count.

Where to buy?

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