$25 off orders over $79 + free shipping with rebate. Promo code: SPRING25The Premium At Home Whitening Kit is designed to brighten your smile on your schedule. Simply apply the included whitening gel to your teeth and place the phone-powered LED whitening light in your mouth. After your first 15-minute treatment, your teeth will be noticeably whiter. Includes 3 tubes of whitening gel (about 20 treatments) and LED whitening light. Light plugs into an iPhone or Android phone with the included USB cable.