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

MEDITHERAPY is the best-performing retinol serum brand in July 2026, moving 100,000 units across 1 ASIN for 26.3% of Top 10 volume. celimax follows with 100,000 units (26.3%), ahead of Beauty of Joseon on 50,000 units (13.2%).

With 8 brands splitting the Top 10 and 65.8% 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 $15.30 to $17.49, 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: B09BST7MMP booked 10K units at $7.97, with ▲ 0.0% MoM change.

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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.