Caution: Keep out of reach of children. Do not use if safety seals are broken or missing. Not intended for use on children under the age of 12. Avoid contact with eyes. Avoid getting whitening product on clothes or other fabrics. Dental Work: Rembrandt 1 Week Whitening Kit will whiten only natural teeth. It will not whiten caps, crowns, veneers, fillings or dentures. Do not use with dental braces. If you have dental work on the teeth to be treated, consult your dentist before use. This product should not harm most dental work. Tooth and Gum Sensitivity: Some people may experience tooth sensitivity or gum irritation when using whitening products. This condition is temporary and not harmful.