EFERO Teeth Whitening Powder Oral Hygiene Cleaning Serum Removes Plaque Stains Tooth Bleaching Tools Toothpaste Usage: Before use, please clean the mouth with warm water, then use a cotton swab to dip proper amount of the product, wipe the teeth surface repeatedly in front of the mirror. Rinse with warm water until the plaque is wiped clean. Package Included: 1 box Teeth Whitening Powder