Dermaroller doesn't penetrate deep and hence no of sittings needed almost may be four times than fractional laser , laser can be made to penetrate depending on how sooner you want results , it's like comparing a type writer with a computer , fractional laser gives better results and hence are recommended for such scars . Infact laser will also not totally remove the scars which are very deep . Some surgical option like needling may be done for better results . You ideally should take call after all this in mind suggests dr.suruchi Puri with a rich experience of 17 years for such treatment and also was associated with Femina miss India Contest and regularly treating Models and contestants for such issues including skin whitening , skin Wrinkles etc . You can take her appt if it's available at 9868080 340 or can visit website www.drsuruchipurimakeovers.com