REPAIR TEETH DAMAGE - Hydroxyapatite is the main component of tooth enamel, which can effectively fill the tiny cracks on the surface of the teeth and repair tooth damage caused by wear and tear or acid erosion. RELIEVE TOOTH SENSITIVITY - Our 9.9% nHAP nano hydroxyapatite toothpaste has a higher content, which can effectively seal the dentin tubules and effectively relieve tooth sensitivity caused by external stimuli such as hot, cold, sour and sweet. PREVENTS CAVITIES - Hydroxyapatite toothpaste remineralizes the surface of the teeth, forming a protective film that strengthens the teeth and reduces cavities. GENTLE WHITENING - Our restorative toothpaste is fluoride-free, gentle and safe, effectively removing surface stains and restoring the natural whiteness of your teeth. FRESH BREATH - Hydroxyapatite toothpaste eliminates bad breath by cleaning and soothing teeth. It contains a refreshing mint flavor that provides long-lasting freshness.