Key Benefits

• Strengthens teeth with nano-hydroxyapatite.

• Glides smoothly between teeth.

• Cleans more effectively with wide threads.

• Made with 100% recycled handles.

Ultra Smooth N-HA Infused Floss Picks Canister - Watermelon combines effective cleaning with enamel support in a fun, fruit-flavoured format. Each floss pick is infused with nano-hydroxyapatite, a mineral that makes up most of our enamel and helps strengthen teeth without the need for fluoride. This mineral works at the microscopic level to support tooth structure during daily flossing.

The wide microfibre threads provide a more thorough clean compared to standard slim floss, helping to remove plaque and debris between teeth with ease. The floss glides smoothly while remaining strong and shred-resistant. A juicy watermelon flavour replaces traditional mint, making flossing enjoyable for kids and adults alike. Packaged with 100% recycled handles, Ultra Smooth N-HA Infused Floss Picks offer a cleaner way to care for teeth and the planet.

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.

100% Recycled Plastic Handle Premium UHMW PE Floss, PEG (Polyethylene Glycol), Watermelon Flavour, Mint Flavour, Nano-Hydroxyapatite, Stevia Extract.

Gently wiggle floss thread between two teeth. Starting from the top of the tooth, work downwards to remove plaque or debris using a gentle scraping motion. Clean both sides of the tooth and along the gum line, wipe floss thread as required. Use other end of floss pick to remove larger debris. Use daily for improved mouth health.