PREFILLED TEETH WHITENING TRAYS 10 20 trays 10 for the top and 10 for the bottom for a total of 10 treatments These trays are made of a unique highly adaptable material that comfortably conforms to any smile OPALESCENCE TEETH WHITENING Easy to use no LED light needed or recommended With over 30 years of expertise 50 Teeth Whitening Awards and 100 million smiles brightened 10 LOW SENSITIVITY TEETH WHITENING KIT Whitens teeth chemically using Hydrogen Peroxide Gel with prefilled trays for efficient tooth whitening and ease of use The trays include gel strips inside DENTAL CARE Glutenfree Kosher sweetened with Xylitol which reduces the risk of tooth decay A lowsensitivity yet efficient teeth whitening kit WORKS ON DISCOLORED TEETH Made in the USA Opalescence products are manufactured in the USA using globally sourced materials Trusted dental care experts at Ultradent ensure the quality and efficacy of Opalescence Go