is a modality for treatment of several skin conditions like acne scar, skin rejuvenation, face lift and Hair loss. A special device, dermaroller with several surgical grade needles is used to create multiple controlled injuries on the skin. It induces collagen remodeling and leads to skin rejuvenation. It is a multiple sitting procedure and repeated at 6 to 8 week interval. It may be combined with Platelet rich plasma therapy to further enhance its efficacy.