Dermaroller: The transepidermal delivery system

Abstract

Dermaroller or skin roller is rapidly gaining popularity for treatment of acne scars, wrinkles, and skin rejuvenation. The treatment is also known as collagen induction treatment, microneedling, or skin roller. Dermaroller is a drum-shaped instrument dotted with 192 fine microneedles in eight rows, 0.5–1.5 mm in length and 0.1 mm in diameter. The fine needles in Dermaroller aid by promoting new collagen through release of growth factors and enhance absorption and penetration of active ingredients through microchannels created by Dermaroller. The indications, contraindications, and technique are discussed.