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Optimum Nutrition Creatine Monohydrate Capsules 300 Count (150 Servings)

Optimum Nutrition
4.6
The bestselling creatine capsule
$49.99 → As of Jul 13, 2026
AI-estimated. See how we score. How we score

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01 / Spec

Top features

Creatine FormMonohydrate (micronized)
MicronizedYes
Third Party TestedNo public COA; banned substance tested by ON

Optimum Nutrition Creatine is a micronized creatine monohydrate capsule formula with 150 servings (300 count). Each serving delivers 2.5g of pure creatine monohydrate, making it ideal for strength, muscle gains, and recovery. The product is banned substance tested and carries Optimum Nutrition's gold-standard reputation in sports nutrition. The capsule form offers convenience over powder mixing, though it requires no flavoring. At ~$0.17 per capsule ($0.33–0.67 depending on serving interpretation), it sits in the premium-to-mid range. No public COA or third-party testing is advertised, but ON's established quality controls and vast positive review volume (500k+ ratings) reinforce trust. Best suited for lifters seeking the simplicity of capsules and the reassurance of a household brand.

02 / Signals

Why it's hot

Bestselling micronized creatine capsules — trusted strength staple, mainstream appeal.

  • Value for money 93
  • Review rating & velocity 100
  • Community sentiment 100
  • Brand reputation 100
  • Search heat 88
  • Est. return & defect rate 99
03 / Verdict

Pros & cons

Pros

  • Micronized monohydrate — pure, effective form
  • Optimum Nutrition's world-class brand reputation
  • 150 servings per bottle — good quantity
  • Banned substance tested for competitive athletes
  • Capsule convenience — no mixing or taste issues
  • 500k+ positive reviews — proven market leader

Cons

  • No public COA or third-party testing advertised
  • Capsule format slightly pricier than powder
  • Higher cost per serving than bulk powders (Nutricost, BulkSupplements)
  • Monohydrate form requires consistent hydration for loading
05 / Compare

Compare the best alternative

One useful head-to-head in Creatine Monohydrate Powder, with the rows most likely to separate the contenders.

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This pick Optimum Nutrition Creatine Monohydrate Capsules 300 Count (150 Servings)
Optimum Nutrition Creatine Monohydrate Capsules 300 Count (150 Servings)
#1 in Creatine Monohydrate Powder
Closest rival Nature Made Micronized Creatine Monohydrate 450g, Unflavored, 90 Servings
Nature Made Micronized Creatine Monohydrate 450g, Unflavored, 90 Servings
#2 in Creatine Monohydrate Powder
Mixability
Capsule format — no mixing required Mostly dissolves, occasional light residue
Cost per serving
$0.33 per serving (average for capsules) $0.21 per 5g serving Best value
Flavor options
Unflavored capsule only Unflavored only
06 / Rivals

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07 / Variations

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08 / Browse

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