Does derma rolling work on hypertrophic acne scars?

Older scars can be more challenging to treat than newer scars. In my opinion, Dermarolling has been overplayed, which I can understand why. It is safe with little risk. Therefore, practically anybody can do it with almost no training whatsoever. Unfortunately, results for any indication (wrinkles, scars, etc) are often minimal. For thicker scars, dermarolling may be useful if used as a tool to get medications into the scar (i.e. corticosteroids or other), although studies are needed to determine its effectiveness and my guess is that longer needles will be needed on the dermaroller.Microdermabrasion when used alone is almost useless in regards to scar treatment, except when blood is drawn (the dermis is reached), at which point it is no longer microdermabrasion. Microdermabrasion can be combined with chemical peeling, which can be useful depending upon which peel is used and what type of scar is present.Nonetheless, the treatment of acne scars should be done by those experienced in such. Good luck!drbader

In my office, medical micro-needling has been proven to be an excellent treatment foracne scarring and for improvement of skin texture. To be really effective, the treatment needs to be combined with the application of human growth factor serum to the skin at the time of the treatment. We use the ProCell Therapies system which combines motorized micro-needling with serums that are specifically made for micro-needling.In these treatment situations, we have found that shorter needles are better for treatment. Longer needle lengths create more tissue damage, swelling and bleeding which can adversely affect penetration of the serum. So, bleeding is not necessary and is usually detrimental.
Also, I do not like derma rolling, as rollers create a more erratic pattern of "tears" through the skin rather than the clean, more evenly distributed punctures seen with the motorized micro-needling machines.