Efficacy of Combined Fractional Er:Glass and Thulium Lasers Versus Microneedling for Atrophic Acne Scars

Inclusion Criteria: * Fitzpatrick skin phototypes I to VI * Presence of atrophic acne scars on the face Exclusion Criteria: * Decompensated systemic diseases * Any active infection (e.g., viral such as herpes, bacterial, or fungal) * Pregnant or breastfeeding women * Presence of hypertrophic or keloid scars * Current use of anticoagulant or antiplatelet medications * History of hemophilia or coagulation disorders * Current use of anti-inflammatory drugs or corticosteroids * Use of retinoids, including isotretinoin, within the past 6 months * Exposure to sunlight within the past 15 days * Undergoing any aesthetic facial treatment or having undergone scar treatments in the facial region within 180 days prior to study initiation * Presence of active acne (occasional isolated lesions will not be considered exclusion criteria)