No Sensitivity and Enamel Safe.
SD Naturals Whitening Gel Syringes 4 Pack. Use as refill for Blue light kit or with Dental whitening trays Ingredients: Water(Aqua), Glycerin, Urea Peroxide, Hydrogen Peroxide, Xylitol, Erythritol, Carbomer, Dipotassium Phosphate, Aloe Barbadensis Leaf Juice, Mentha Arvensis Leaf Oil, Melia Azadirachta Leaf Extract, Zinc Citrate, Calcium Lactate, Potassium Citrate, Disodium EDTA, Polysorbate 80 Tooth Friendly Xylitol.9 Key Natural ingredients remove stains and promote oral health. 24 Treatments (Upper and Lower).