Key Benefits

• Gently lifts stubborn stains.

• Strengthens and repairs enamel.

• Helps reduce tooth sensitivity.

• Fluoride-free and enamel-safe formula.

Enzyme Whitening Toothpaste + Nano-Hydroxyapatite combines natural fruit enzymes and a biomimetic mineral to deliver a comprehensive approach to oral care. Bromelain and papain—derived from pineapple and papaya—work together to break down plaque proteins and dissolve surface stains from coffee, tea, wine, and everyday foods. This plant-powered action reveals a visibly brighter smile without harsh abrasives.

Nano-hydroxyapatite, a mineral that closely resembles the structure of tooth enamel, helps fill in microscopic cracks and restore smoothness to the tooth surface. This makes enamel more resistant to acid erosion and future staining while reducing sensitivity. The result is stronger, glossier teeth that reflect light better—without the use of fluoride. Enzyme Whitening Toothpaste + Nano-Hydroxyapatite offers a clean, science-led solution to everyday whitening and enamel defence.

Enzyme Whitening Toothpaste + Nano-Hydroxyapatite uses a highly purified form of nano-hydroxyapatite that meets the strict safety standards of the Scientific Committee on Consumer Safety in Europe. The formula contains 15.5% active nano-HAp with rod-shaped particles smaller than 100 nm, designed to integrate seamlessly into the enamel structure. With an ultra-low RDA below 10, it offers effective stain removal without damaging the tooth surface. This biocompatible, paraben-free, and vegan formula supports daily use while protecting enamel and promoting long-term oral health.

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.

Calcium Carbonate, Glycerin, Water, Xylitol, Sodium Bicarbonate, Lauryl Glucoside, Carrageenan, Hydroxyapatite, Aroma, Papain, Bromelain, Sodium Phytate, Xanthan Gum, Arginine.

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.