Dermaroller is effective at treating the following skin conditions acne scars stretch marks scarringscar tissue cellulite reduction wrinkles and lines surgical scar repair sun damaged skin how long before you see any results your skin requires time to regenerate and repair it needs a period of time to enable new collagen to grow which then boosts cell growth and improves blood circulation so you can expect to wait for 6 weeks before you notice any visible signs of improvement in y