Use of combined fractional carbon dioxide laser and fractional microneedle radiofrequency for the treatment of acne scars: A retrospective analysis of 1-month treatment outcome on scar severity and patient satisfaction.

In conclusion, our findings revealed association of FCL + FmRF treatment with significantly improved ECCA scores, mild pain experience, and low rate of side effects in patients with acne scars, despite usage of high-energy FLC dose and five sessions of treatment on average. More remarkable improvement in ECCA scores during treatment seems to be associated with higher patient satisfaction and to be more likely in patients with darker skin types.