Instructions: Squeeze a Proper Amount of Foam into Your Mouth, Spit the Foam out in 10-15 Seconds and You Will Feel That Your Mouth is Refreshed Instantly. Squeeze the Proper Amount of Foam on Your Toothbrush. Gently Brush Your Teeth and Coated Tongue for 2-3 Minutes for Cleaning and Refreshing. Specification: Item Name: Teeth Whitening Mouthwash Foam Net Content: 30ml/ 1 Floz Shelf Life: 3 Years The Feature of Teeth Mouthwash : Whitens Teeth Deeply Fresh breath Eliminates Bad Breath Relieves and Prevents Mouth Sores Prevents Cavities Removes Calculus Stimulates the Regrowth of Lost Teeth Package Includes: 3PCS * Teeth Whitening Mouthwash Foam(30ml)