How much percentage of improvement can I expect from Derma Rolling for my acne scars on cheeks?
I have moderate scars on my both cheeks. I did one fractional co2 laser from a clinic. I think it helped me a little. As it is very expensive. I decided to do dermarolling with 2mm dermaroller. How many percentage ofimprovement can I expect from dermarolling? How long should I roll? When will I start to see the results. Please help me

