FAQ for Skin Needling, Collagen Rejuvenation Therapy (CRT)™, Scar Relaxation™ and Melanocyte Restoration™ classes. Q. Will I work under my cosmetology, aesthetics, nail technician or other state beauty license for Skin Needling™ / Micro Needling, Collagen Rejuvenation Therapy™, Melanocyte Restoration™ and Scar Relaxation™? In most states NO! In most states you will NOT be performing these procedures under …