Your practitioner will use a genuine dermapure pure roller medical device to produce thousands of microscopic needle columns in the skin each column will penetrate into the dermis of the skin and will be approximately 01mm in width the column will close rapidly enabling the skin to recover quickly often in the same day your practitioner will use a topical anaesthetic to numb the skin making the procedure comfortable it will normally take up to 30 minutes for the topical anaesthetic to wor