Cocoshine Toothpaste, 4 oz — 12 packPowered by a 15. 5% nano hydroxyapatite (nHA) formula that yields 3% active concentration, Cocoshine smooths enamel, gently buffs away surface stains, and enhances natural shine for a brighter smile without peroxide. What it is: Dentist designed, mineral powered whitening toothpaste Size: 4 oz (113 g) The proof: Whitens in 1 week* and clinically tested to respect the oral microbiome.* Why it works: Cocoshine helps fill in mineral gaps in the teeth,