21 Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

L'Oreal Paris is the best-performing 21 brand in July 2026, moving 20,000 units across 1 ASIN for 69.9% of Top 10 volume. SALERM follows with 2,800 units (9.8%), ahead of AOZITA on 2,500 units (8.7%).

With 6 brands splitting the Top 10 and 88.5% 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 $8.99 to $22.52, 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: B0DYYJ44SX booked 600 units at $9.99, with ▲ 20.0% MoM change. On the growth side, B0GWL8DDQ1 leads positive momentum with ▲ 100.0% MoM growth on 200 units, with B08Y8HFGD7 close behind at ▲ 100.0% MoM on 200 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.