Peptide Serum Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

The Ordinary is the best-performing peptide serum brand in July 2026, moving 170,000 units across 4 ASINs for 41.5% of Top 10 volume. medicube follows with 110,000 units (26.8%), ahead of COSRX on 40,000 units (9.8%).

With 6 brands splitting the Top 10 and 78.0% 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 $16.99 to $20.35, 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. Specifically, one ASIN forced its way in: B0C9DXGXZ3 booked 20K units at $32.00, with ▲ 0.0% MoM change. On the growth side, B0GV4424F8 leads positive momentum with ▲ 185.7% MoM growth on 2K units, with B0GCC2JV65 close behind at ▲ 33.3% MoM on 40K 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.