Your practitioner will use a Genuine Dermaroller™ medical device to produce thousands of micro-medical needle-columns in the skin. Each column will penetrate into the dermis of the skin and will be approximately 0.1mm 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 work and 20 - 30 minutes for the Genuine Dermaroller™ Therapy procedure. After a Genuine Dermaroller™ Therapy™ procedure your body will start to naturally regenerate and repair the skin, working below the surface in the dermis. This takes time as new collagen is formed, new skin cells are generated and blood supply is enhanced. It can take up to 6 weeks before visible signs of regeneration and repair are seen and the process will continue over the following months, providing you with a natural and long lasting enhancement. Your practitioner will normally recommend that your Genuine Dermaroller™ Therapy™ consists of a series of three Genuine Dermaroller™ procedures with approximately 6 weeks between them. In the treatment of acne scars and other types of scarring it may be necessary for your practitioner to extend your Genuine Dermaroller™ Therapy™, carrying out up to five procedures.