Stain removal: the teeth whitening serum can remove stains, tartar and plaque from the teeth, clean teeth powerfully and thoroughly, and say goodbye to the black and yellow teeth SAFE & MILD Teeth cleaning serum contains safe and non-irritating ingredients, perfect for sensitive teeth. Our whitening serum is the perfect home solution for premium quality teeth whitening Widely Used 2 bottles of teeth cleaning serum are available, enough to meet your oral care needs. Small and lightweight, easy to carry, perfect for home and office use REFRESHES BREATH, BOOST CONFIDENCE The teeth whitening serum has a long-lasting fresh taste, freshens your breath while whitening teeth, eliminates bad breath for a fresh, confident smile Easy to use: clean your mouth with warm water, then pick up a reasonable amount of teeth whitening serum with a cotton swab, wipe the surface of your teeth repeatedly, and then rinse with warm water Specification: Item type: teeth whitening serum. Net content: 30ml x 2pcs Shelf life: 3 years. Storage method: store in a cool and dry place Function: teeth whitening Package list: 2 x teeth whitening serum.