Infusion - This is one of the best features. Normally, large molecules cannot penetrate the skin to provide the deep medication that skin often needs to maintain health. But ultrasound makes that penetration possible — the process is called "sonophoresis." More exciting still is because of the small molecular size of the active in the line, 302 skincare products, when used in conjunction with Ultrasonic treatments, prove an especially powerful combination for skin health and rejuvenation. Typically, a serum is penetrated into the skin to provide deep healing and protection to skin cells. Your skincare specialist will discuss with you any other products specific to your skin type that you may need. These are applied liberally to the skin and then the hand instrument is lightly stroked over your skin. The ultrasound frequency opens minute pathways to allow the product to penetrate deeply into your skin, for better, more long-lasting results.