Fractional carbon dioxide laser combined with intradermal injection of autologous platelet-rich plasma versus noncross-linked hyaluronic acid in the treatment of atrophic postacne scars: A split face study.

Background: Atrophic acne scarring is a common cosmetic problem that may affect 95% of patients with acne.

Aims: The objective is to evaluate the efficacy of the fractional CO laser combined with intradermal injection of PRP versus intradermal injection of noncross-linked hyaluronic acid in the treatment of different types of atrophic postacne scars.

Methods: The study included 30 patients with postacne scars.