Key Benefits

• Strengthens and rebuilds enamel.

• Helps reduce tooth sensitivity.

• Supports a healthy oral microbiome.

• Fluoride-free with natural ingredients.

Enamel Care Toothpaste + Nano-Hydroxyapatite offers targeted support for enamel health using science-backed, naturally derived ingredients. The formula features nano-hydroxyapatite, a mineral that makes up the majority of human enamel, to help remineralise teeth and reinforce their natural structure. It fills microscopic gaps caused by acid erosion and forms a smooth, protective barrier that resists future damage.

This fluoride-free toothpaste also helps reduce sensitivity by blocking exposed dentinal tubules, which lead directly to the nerve. Magnolia bark extract adds natural antibacterial support, helping maintain a healthy oral microbiome and contributing to overall gum health. Free from fluoride, palm oil, and gluten, Enamel Care Toothpaste + Nano-Hydroxyapatite offers a clean approach to professional-grade enamel defence.

Enamel Care Toothpaste + Nano-Hydroxyapatite uses a highly purified form of nano-hydroxyapatite that mimics the natural mineral structure of teeth. Unlike fluoride, which forms a protective layer, nano-hydroxyapatite integrates directly into enamel to rebuild and repair it from within. The formulation features 15.5% active nano-HAp with rod-shaped particles under 100 nm in size, designed for optimal adhesion and enamel restoration. With an RDA below 10, it offers effective cleaning with minimal abrasion, making it gentle on teeth. Approved by the SCCS and free from parabens, this biocompatible and vegan formula supports safe daily use—even if accidentally swallowed.

Grin was founded by Tara Tan in New Zealand with a clear mission to create effective oral care without harsh chemicals. When she couldn’t find a toothpaste free from artificial additives, she spent 18 months developing one. Grin uses natural active ingredients like Manuka Oil, Propolis, and Organic Sea Salt, backed by lab testing to help combat common oral bacteria. Every product reflects a commitment to clean formulations, scientific integrity, and sustainable practices, using New Zealand-sourced ingredients. Grin offers you a healthier, natural way to care for your teeth and support long-term oral health.

With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.

Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.

Glycerin, Calcium Carbonate, Water, Xylitol, Lauryl Glucoside, Carrageenan, Aroma, Hydroxyapatite, Foeniculum Vulgare (Fennel) Fruit Extract, Xanthan Gum, Magnolia Officinalis Bark Extract, Sodium Chloride.

Use a pea-sized amount of the toothpaste and brush thoroughly for two minutes, twice daily, preferably after meals or as directed by a dental professional.