Opal Sonic Infusion is a breakthrough in eye care that uses proven sonic technology to apply eye serum better than manual application. In one minute, Opal gently delivers serum beneath the surface with 7500 gentle micro-massages. Developed by the lead inventor of Sonicare® and Clarisonic Sonic Skin Cleansing. Use Arcona's Eye Dew in the morning and Clarisonic's Anti-Aging Sea Serum at night. Opal Sonic Infusion System Contents: For Black Opal only : Due to the unique material used on the Black Opal, you may not be able to see the LED charging light on the Black Sonic Infuser. Align the stripe of the Charging Base with the stripe of the Infuser, with the Clarisonic logos facing up. You will feel a magnetic click and the Infuser will pulse twice as your indication of proper charger placement .