Teeth Whitening Kit Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Crest is the best-performing teeth whitening kit brand in July 2026, moving 210,000 units across 5 ASINs for 65.6% of Top 10 volume. GuruNanda follows with 50,000 units (15.6%), ahead of INOPRO / on 20,000 units (6.3%).

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 $9.97 to $28.54, 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: B000MMYI8G booked 10K units at $33.88, with ▲ 0.0% MoM change. On the growth side, B0GY3M3B59 leads positive momentum with ▲ 455.6% MoM growth on 5K units, with B0G87LSPQB close behind at ▲ 200.0% MoM on 3K 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.