Our Teeth Whitening Powder Contains Hydrated Silica, Soda, Coconut Oil Extract. It Can Whiten Teeth, Relieve Swelling and Pain of Teeth, and Repair Gum Bleeding. Its Use Method Is Very Simple: First Wet the Toothbrush, Dip Toothpowder, Then Brush Your Teeth Gently for 2-3 Minutes According to the Correct Toothbrushing Methods, and Finally Rinse Your Mouth with Clean Water after Brushing Your Teeth. And It Will Not Damage Teeth.