Hair Growth Shampoo Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Nutrafol is the best-performing hair growth shampoo brand in July 2026, moving 170,000 units across 4 ASINs for 42.5% of Top 10 volume. Nizoral follows with 150,000 units (37.5%), ahead of MARYRUTH'S on 30,000 units (7.5%).

With 6 brands splitting the Top 10 and 87.5% 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 $23.17 to $88.00, 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. Specifically, 3 ASINs forced its way in: B0B57PZ2B2 booked 20K units at $88.00, 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.