Hello and thank you for the question.
Nothing can definitively get rid of old acne scars if they are substantial, but significant improvements in your skin tone are possible. Derma rolling is helpful in managing stable acne scars. Several treatments are often required for more extensive scarring. This treatment can be combined with a fractionated laser treatment for optimal results.
Glenn Vallecillos, M.D., F.A.C.S.
Web reference: http://www.BeverlyHillsCosmeticSurgeon.com