Fentanyl Test Strips Market Report: Sales Volume, Market Share, Leading Brands & Market Trends

Prime Screen is the best-performing fentanyl test strips brand in July 2026, moving 10,000 units across 1 ASIN for 55.6% of Top 10 volume. JLB follows with 4,300 units (23.9%), ahead of Mobile Detect Pouch on 1,000 units (5.6%).

With 8 brands splitting the Top 10 and 85.0% 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 $6.40 to $21.99, 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: B0BKGZ1JP7 booked 200 units at $24.99, with ▲ 100.0% MoM change. On the growth side, B0GFPZN3ZZ leads positive momentum with ▲ 25.0% MoM growth on 1K units, with B078XMW5J9 close behind at ▲ 11.1% MoM on 10K 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already changed hands — an incumbent gave up its place to make room, so any competitive set drawn up a month ago is now out of date.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.