I've stated my opinion on this subject matter a numerous times over the many years I've been on this site, but i will repeat it again. I truly believe the utmost effective ways in eradicating pitted scars are by employing a co2 fractional laser/subcision in combination with recell or perhaps a true fat stem cell graft with the Celution machine can be just as good if not better. I feel very strongly about these particular treatments because I have seen some remarkable before/after pictures from people being benefited by it. If you have extremely mild scars or red marks then fraxel restore, derma rolling, tca cross or needling may help a bit but mostly it will be a big waste of time and money…. if you're seeking an improvement to pitted scars it will require much more drastic actions such as the ones I've mentioned above..