Derma rolling is a treatment that involves using a derma roller covered with 150 - 500 micro needles to roll on the skin and create tiny wounds in the process. The tiny wounds then trigger our body's natural "healing response", causing new blood vessels to form under the skin and causing the body to direct large surges of collagen to the wounded areas. These collagen would help resurface the skin; make the skin become smoother and younger; heal acne scars as well as reduce the appearance of fine lines and large pores.
The tiny wounds created by the dermaroller are very superficial so the treatment will not leave any scar or do any damage to the skin tissues and the blood vessels.