Teeth Whitening Gel Syringes. Your purchase includes:4 Teeth Whitening Gel Syringes. Enough bleaching gel for 7 to 20 daily whitening applications 1 set of upper and lower thermoforming whitening mouth trays Sealed bag Instruction Sheet Why Our Product? Always White has been providing quality dental professional strength oral products for 25 years. Our innovative teeth whitening system supplies users with all the tools they need to safely and affordably whiten teeth at home. Our gels are the same strength used in dental offices which charge $600 per treatment. Our gel is made fresh daily with a two year shelf life 30 years (3 decades) in the dental field We formulate with 100% pure formula. No fillers or additives used. Simply put, other products do not work as effectively. Some over-the-counter trays are not moldable to your teeth and do not hold the gel in the proper position. We should note that you can whiten your teeth with a lower percentage, but it takes a much longer treatment time in your mouth. Our 22% gel is HIGHLY effective. In short, we offer more effective whitening power for your money than any other system.Our at-home bleaching system is specially designed to be an easy-to-use system with detailed usage instructions. Over a decade of research indicates that whitening teeth with carbamide peroxide is safe and effective. All of our products comply with FDA regulations.MADE IN USA !