Fit the mouth tray to the led light. Led technology is taken for granted as leds are in widespread use. Pin On Beauty Tips 1 led light & mouth tray; Does hismile led work . Formulated at the hismile research centre. Pap, nhap, and potassium citrate. I was pleasantly surprised by the kit. The instant teeth whitening process of hismile is done through a combination of an led light and whitening gels process. Light emitting diode, led circuit symbol Here is how the teeth whitening kit works: Hismile kit comes with an led light, teeth whitening shade guide, instruction manual, 3 gel syringes, and a mouth tray. The product, which costs £59.99 (including the machine plus three syringes) is easy to use and gave better results compared to charcoal teeth. Each hismile teeth whitening kit comes with enough gel for six applications, an led light, a mouth tray, a shade guide and an instruction manual. Hismile is an amazing company i had the opportunity to partici...