Features:  - Suitable for: Long-term stubborn stains of teeth caused by smoking, drinking coffee and other beverages; The discoloration of teeth caused by drugs (tetracycline teeth, fluorosis teeth); Elderly or hereditary yellow teeth.  - Soothing Gel (No need to use every time): It is normal that the teeth feel a little discomfort after each use. Apply some soothing gel on the surface of teeth for 3-5 minutes to relieve the discomfort.     Specifications:  Ingredients of the Whitening Gel: Deionized Water, Citric Acid, Glycerin, Potassium Sorbate, EDTA, Polysorbate 20, Triethanolamine, Carbomer;  Ingredients of the Soothing Gel: Deionized Water, Glycerin, Carbomer, Sorbitol, Xylitol, Zinc Citrate;  Product Batch Number & Production Date: See The Packaging;  Shelf Life: 3 Years.     Package Included:  9 x Teeth Whitening Gel (3ml);  1 x Soothing Gel (3ml).     Precautions:  - Keep away from children.  - Avoid touching the eyes with whitening gel. If you touch it accidentally, please rinse your eyes with water immediately.  - This product is used to whiten teeth only.