✨ Brighten Your Smile, Elevate Your Confidence! ✨ Produced in the USA for guaranteed quality. Formulated for maximum stain removal effectiveness. Achieve up to 8 shades brighter in just 7 days! Works seamlessly with any whitening trays. Experience powerful whitening without discomfort. 4x 3ml Syringes 44% Carbamide Peroxide Freshly Produced in USA This Teeth Whitening Gel Refill includes 4 syringes of 3ml each, featuring a potent 44% carbamide peroxide formula designed to deliver noticeable whitening results without sensitivity. Made fresh in the USA, it's compatible with any whitening trays, ensuring a convenient and effective teeth whitening experience.