RESULTS GUARANTEED! WHY SRS SMILE TOOTH WHITENING PRODUCTS OVER THE COMPETITION Our manufacturer has 30 years in the dental field They are the Worldwide leader for over 9 years of Teeth Whitening products extensively to dental professionals. Our manufacturer makes the gel fresh daily with two year shelf life. Only Becton Dickson syringes are used since they are the global standard for the medical field. The formula is 100% pure with no fillers or additives used. Only the finest ingredients; kosher USP glycerine (no animal by products) USP grade carbamide peroxide etc. Our manufacturer implements laboratory quality testing of all products for quality assurance. They are the first manufacturer of 22% and 35% teeth whitening gel in the industry. Clinically proven to whiten teeth, dramatically and safely. Immediate results The viscosity assures adherence to the tooth surface for fast, easy results. Contains desensitizing agents for maximum client comfort. SRS SMILE continues to work with the manufacture to ensure quality and RESULTS GUARATEED!