SupplementsUpdated September 2026

Optimum Nutrition Micronized Creatine

Optimum Nutrition's micronized creatine is the most widely used creatine supplement in the world. The micronizing shrinks particle size for better dissolution and absorption. It is Informed Sport certified (third-party batch tested), 100% creatine monohydrate with no additives, and it comes in the widest range of si…

Reviewed by
HealthRankings editors
Evidence
Limited
Overall score9.4/10Excellent
Price$30Budget
HSA / FSACheck with provider
EvidenceLimited
Quick take

What we loved & what to know.

Strengths

  • Informed Sport certified (third-party batch tested)
  • Micronized for better dissolution
  • 100 servings under $25, best price/quality ratio
  • Most widely available
  • 400 serving bulk option
  • No fillers

Tradeoffs

  • Not Creapure (US-manufactured)
  • Unflavored only in bulk sizes
  • Lower purity spec than Creapure (still excellent)
Real-world usage

Living with the Optimum Nutrition Micronized Creatine.

Practical considerations for daily operation.

Daily routine

Designed to slot into a typical daily-use routine without friction.

Learning curve

Plan a short learning curve to get a feel for the device's prompts and ideal positioning.

Maintenance

Keep the unit clean and store it in a dry case to preserve accuracy long-term.

Portability

Best kept on a counter or shelf at home; not engineered for daily commuting.

Manual / offline use

App access unlocks history and trend tracking, but on-device readouts cover daily use.

Hands-on notes

Deep dives.

At a Glance

Optimum Nutrition's micronized creatine is the most widely used creatine supplement globally — micronized to reduce particle size for better dissolution and absorption. Informed Sport certified (third-party batch tested), 100% creatine monohydrate with no additives, and available in the largest variety of sizes from 60 to 400 servings. The best option for cost-conscious athletes who want quality without the Thorne premium.

How it stacks up

Supplements ranked.

The Optimum Nutrition Micronized Creatine alongside our top picks in supplements.

RankDeviceScore
#1
Thorne Creatine (Creapure)
9.6/10Compare →
#2
Optimum Nutrition Micronized CreatineYou’re reading
9.4/10Current
#3
Klean Athlete Creatine
9.0/10Compare →
#4
BulkSupplements Creatine Monohydrate
8.8/10Compare →
#5
Transparent Labs StrengthSeries Creatine HMB
8.6/10Compare →
9.4/10
Excellent
HealthRankings verdict

The bottom line

Optimum Nutrition's micronized creatine is the most widely used creatine supplement in the world. The micronizing shrinks particle size for better dissolution and absorption. It is Informed Sport certified (third-party batch tested), 100% creatine monohydrate with no additives, and it comes in the widest range of sizes, from 60 to 400 servings. It is the best pick for cost-conscious athletes who want quality without paying the Thorne premium.

How we test

HealthRankings buys, tests, and rates devices independently. Our scoring blends quantitative measurements (accuracy vs reference, sample-to-sample variability, fit testing) with everyday usability and cost. We disclose affiliate links and never accept paid placement in our rankings.

Medical disclaimer: Reviews are for general information only and are not medical advice. Always follow your clinician's guidance for diagnosing or treating health conditions. Read full disclaimer