Optimum NutritionMicronized Creatine Powder

Overview

Optimum Nutrition's Micronized Creatine Powder is about as simple as supplements get: one scoop delivers 5 g of micronized creatine monohydrate, with nothing else in the unflavored version. Micronizing shrinks the particle size so the powder disperses more easily in water or a protein shake. Optimum Nutrition says the product is banned-substance tested through the Informed Choice program. It comes in 60-, 120- and 240-serving tubs, plus a handful of flavored versions, and it is sold through ON's official Amazon and TikTok Shop stores.

What reviewers say

Across YouTube reviews, the praise is consistent and unglamorous: it mixes easily, has no taste in the unflavored version and costs little. Aaron Unpacked's quick demo focuses on how readily it dissolves in water, Supplemental Kyle walks through its ingredients, value and effectiveness, and a 2026 head-to-head from Product Exposed compares it with Thorne and Momentous on sourcing, testing and Creapure versus standard creatine. It's a long-running staple, with more than 17,000 units sold on its official TikTok Shop listing alone. Critiques focus on what it lacks, namely an NSF Certified for Sport seal and a Creapure sourcing claim.

Who it's for

Anyone starting creatine or buying it long term on a budget, especially lifters who already use Gold Standard whey and want an unflavored add-in. The three tub sizes make it easy to try a two-month supply before committing to the 240-serving value size.

Bottom line

Research on creatine monohydrate is extensive, and this is an affordable, tested way to take it every day. Unless you need NSF certification for drug-tested sport, it is the smartest default.