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Split Face Comparative Study of the Efficacy and Outcome of ND: YAG Laser and Intense Pulsed Light System for Hair Removal

A prospective clinical split face comparison study conducted to compare the efficacy and safety of long-pulsed Nd: YAG laser and IPL in the treatment of idiopathic facial hirsutism. A 42 females with idiopathic hirsutism aged16-52 years with skin types II-IV were enrolled. A 38 patients completed the study; IPL applied on the right sides of the face and the ND: YAG on the left sides. They underwent six treatment sessions with 4 weeks intervals. Findings revealed that IPL treatment resulted in longer median hair-free intervals than Long-pulsed Nd: YAG laser therapy. Decrease in hair counts was significantly higher after IPL than Long-pulsed Nd: YAG laser. Hair reduction was 40%, 69% and 86% on IPL versus 32%, 58% and 80% on Long-pulsed Nd: YAG laser (p=0.0001), respectively. Patient satisfaction scores were significantly higher for the IPL when compared with Long-pulsed Nd: YAG laser treated sides at 1, 3, and 6 months. Slight stinging and burning sensation at time of the treatment were recorded in all patients. Erythema was seen on both the treated sides in all cases, which lasted from hours up to 2 days after session. Only 4 patients develop Leukotrichia on IPL treated side and are felt to be due to thermal damage to the melanocytes.