Boka entered Walmart at three to four times the price of the toothpaste beside it and beat its targets. It reports 481% year-over-year retail growth for 2025 and calls itself the top-selling toothpaste on Amazon, both on its own figures. What crossed into oral care was a marketing method, lifted from beauty and run without adjustment.

Chemistry does not explain the position. An Amazon sales tracker’s June reading puts Boka’s two lead listings first and second in hydroxyapatite toothpaste, at roughly 80,000 units a month each and $11.62 a tube. Its closest competitor for first place is itself. Mouthology, in third, sells the same active ingredient for $9.99, holds the same 4.5-star rating, and moves half the volume. The difference between the listings is not the formula. It is 52,600 reviews.

Amazon cannot read a brand story; it can only count what the story makes people type.

Beauty spent two decades training shoppers to buy by ingredient name, and Boka arrived carrying one. Its general manager, Sarah Mountcastle Mitchell, told Glossy the opening was to treat oral care “in more of the beauty sense”; the boxes list flavour top notes and bottom notes, in the manner of a fragrance. Searches for hydroxyapatite never passed 4 out of 100 between 2004 and 2022, the same report notes, and reached 100 in April. An ingredient nobody looked up four years ago is now a search term with a brand already sitting on top of it.

The Amazon rank is what bought the shelf. Kinsey Butler, Boka’s senior director of brand marketing, told Modern Retail that Amazon brand awareness, “like the search volume and the subscribe and save,” is a large part of what led Walmart and other retailers to bet big on the brand. Boka is now moving into 4,500 Walmart stores and says its sensitivity line has already beaten the retailer’s sell-through goals by 225%. Selling at that scale has since pulled the price of most of its toothpastes down to just under $10, near where Mouthology already sat. The rank was bought at the old markup; it is being spent at something closer to parity.

Even the coverage that credits the chemistry hedges on it. Forbes reported in January that revenue rose from under $10 million in 2022 to more than $50 million in 2024, and put the growth down not only to flavour profiles, branding and distribution but also to the differentiated active ingredient — chemistry as one factor named alongside marketing, not the explanation for it. Any brand can buy that chemistry, and the $9.99 listing already has. The same piece notes that Boka’s owner, Essor, holds brands selling acne patches, mushroom supplements and beard oil besides. Those brands share no category and no shopper; what they hold in common sits in the marketing department.

Viking Revolution, the beard-oil brand on that list, is running the same sequence in a category with no overlap. Amazon supplies about 95% of its sales, and Walmart placed seven of its products in 900 stores in January after noting it was a top Amazon seller. Beauty wrote the playbook. It does not get to keep it.