Effective for Stretch Mark Removal, Anti Aging, Repair Acne Scarring, Wrinkle Reduction, Celluite Reduction, Hair Loss Treatments, etc * The Skin Roller has 540 needles per roller head, in comparison with the standard roller that has less than 200 needles per head. With extra needles, you will have greater penetration in much less time. * Can be used on all areas of the face, neck and body and scalp. * Can be used by yourself anytime at your personal convenience. * Rejuvenates skin, promotes pores and skin elasticity, will increase skin thickness.