# Category call-out — `a=foam`

[← All ads](README.md) · [Open the matching landing page](../web/index.html?a=foam)

## Primary text

Here's how toothpaste gets judged: in the shop (does the box look clinical?) and in the first week (does it foam, does it taste strong, does it feel clean?).

So that's what the category optimised for. A detergent for the foam. A hard mint for the "clean" signal. An abrasive for the instant smooth. All sensation.

Meanwhile, enamel is about 97% one mineral — hydroxyapatite — and it's not in the tube.

Dr.Strongbite is built the other way round: the mineral first, plus calcium, bicarbonate of soda and coconut oil. Low foam. Honestly a bit salty for the first three seconds. Then just… clean.

Free 60-Second Enamel Check at the link — it'll tell you straight if you don't need us.

**Headlines:** Foam is a party trick · Sensation isn't care · Built the other way round

**Description:** No SLS. No foam theatre. The mineral instead.

**CTA:** [Take the quiz](../web/index.html?a=foam)

**Destination:** [`../web/index.html?a=foam`](../web/index.html?a=foam)

**Creative:** A single dollop of exaggerated white foam on porcelain, lit like a product hero — captioned "This is not doing what you think it's doing." Names the structural failure, no competitor shown or named.

**Notes:** The villain angle from the sales page (§3.4), compressed. The salt honesty is deliberate — pre-empting the taste objection in the ad builds trust before the click.