Derma roller is used as a medical device.  Consists of a durable plastic roller head covered with high quality titanium/or medical steel needles.  The needles are designed to penetrate the stratum corneum, the hard outer surface of the epidermis layer of the skin, body or scalp.  Hundreds of small channels are created through the stratum corneum, which facilitate the passage and absorption of the skin care product, or minoxidil for hair restoration into the dermis, to increase its absorption.Gently exfoliates excess skin cells that contribute to hair follicle malnutrition, premature aging, and ultimately hair follicle failure, wrinkles, stretch marks, cellulite and scars. The roller stimulates blood flow to the surface, gives a skin massage, cleanses pores and stimulates collagen regrowth.