Efficacy of Polycaprolactone Threads in Treating Atrophic Acne Scars: A Split-face Comparative Study.

Background: Polycaprolactone (PCL) threads are a novel treatment option for promoting collagen production and smoothing the skin.

Objective: This study aimed to compare the efficacy and safety of threads versus microneedling with autologous platelet-rich plasma (PRP) in the treatment of atrophic acne scars.

Methods: The study included 24 patients (12 females, 12 males) aged 20 to 37 years with atrophic acne scars.