Objective Evaluation of Photoepilation by Phototrichogram

The study aimed to objectively evaluate the efficacy of photoepilation using a phototrichogram method. Thirteen young, healthy, female volunteers underwent intense pulsed light-assisted photoepilation on their axillae twice at 4-week intervals. Hair variables were assessed using phototrichograms and digital cameras. Eight weeks after the treatments, all patients showed significant hair reduction, with decreases in total hair counts, anagen ratio, non-vellus hair counts, hair density, anagen growth rate, and hair diameter. Doctor evaluations correlated with anagen hair counts, anagen/total hair ratio, anagen/telogen ratio, and total growth rate. The study concluded that phototrichograms could serve as an objective technique for evaluating hair removal, with anagen parameters and total growth rate being predictive values for assessing epilation efficacy.