Treatment of Mild to Severe Acne Vulgaris With a 650-Microsecond 1064-nm Nd:YAG Laser.

Background: Effective treatment of acne remains a challenge to dermatologists.

Objective: To evaluate the efficacy and tolerability of a 650-microsecond, pulsed 1064-nm Nd:YAG laser therapy for mild to severe facial acne vulgaris.

Methods: Human subjects of Fitzpatrick skin types I to VI with mild, moderate, or severe acne enrolled in the prospective, single-center study. Subjects received 5 treatments at 2-week intervals with the 650-microsecond, 1064-nm, pulsed Nd:YAG laser. Follow-up visits were 30 days and 90 days after the final treatment. At each visit, subject global assessments, lesion counts, investigator's global assessments (IGAs), and tolerability appraisals were performed.

Results: The median percent reduction in lesion count was 48.15% after 1 treatment and 83.72% at treatment 3 and remained at 86.67% at 90 days. Sixty percent of subjects noted improvement after treatment 1, and most subjects noticed improvement on or before treatment 3. Median IGA values decreased rapidly to reach a plateau of 1.0 (almost clear) at week 6 and remained there at the 30- and 90-day follow-up. Ninety percent of subjects were slightly to highly satisfied after 3 treatments, and 90% slightly to strongly agreed that their acne treatments improved their self-esteem after 4 treatments. Anesthesia or skin cooling were not used, and adverse events were not observed.

Conclusions: The 650-microsecond, pulsed 1064-nm Nd:YAG laser has been proven to deliver long-lasting clearance of mild to severe facial acne vulgaris with high subject satisfaction and without adverse effects on skin types I to VI. J Drugs Dermatol. 2024;23(11):957-964. doi:10.36849/JDD.8171.