Made with 540 titanium 0.5mm needles, this derma roller activates the skin and scalp. The Skin Activator Derma Roller is a hand-held microneedling tool intended to stimulate the scalp, encouraging the activation of hair follicles. Combined with THE HAIR REGROWTH SERUM, follicles are further stimulated and hair growth is promoted. When used in the skin with our serums, collagen is stimulated and the skin’s surface is smoothed. If lines and wrinkles are a concern, this is your go-to home tool between your in office Microneedling treatments.