Creatine Capsules Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Optimum Nutrition is the best-performing creatine capsules brand in July 2026, moving 160,000 units across 4 ASINs for 38.2% of Top 10 volume. THORNE follows with 130,000 units (31.0%), ahead of Nutricost on 110,000 units (26.3%).

With 5 brands splitting the Top 10 and 95.5% of volume sitting with three of them, this is a concentrated shelf — the leaders hold multiple listings or one very high-velocity ASIN, so a new entrant competes against established review moats rather than an open field. Average selling prices among the leaders run from $26.15 to $40.00, which frames the price band a competing listing has to justify.

Based on July 2026 data, this shortlist surfaces the two kinds of ASIN worth keeping an eye on — the ones that just broke into the Top 10, and the ones growing fastest month over month. On the growth side, B0F6K7XSGP leads positive momentum with ▲ 150.0% MoM growth on 5K units, with B000GIQS0W close behind at ▲ 100.0% MoM on 20K units.

The two signals carry different weight. A fresh entrant means share has already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date. A steep growth rate works as the earlier warning: it marks demand that is still compounding, usually a month or two before the ranking catches up to it.