TY - JOUR AU - Linge, C. AB - There is great variation in response when ruby laser is used to remove unwanted body hair. Destruction of hair is often not possible after one laser treatment and the frequency and timing of repeated treatments required to achieve optimum treatment results are unknown. It was the aim of this study to determine whether the efficacy of ruby laser hair removal depended on the hair growth cycle. A prospective clinical study was carried out. The lower legs of 48 patients were treated with the Chromos 694 ruby laser at a standard fluence of 11 Jcm–2. Treatment efficacy was determined as the percentage decrease in hair density at 3 and 7 months. The proportion of growing and resting hairs in the treatment site was assessed by examination of plucked hair roots harvested from areas adjacent to the treatment site. To determine whether examination of plucked hair roots microscopically was reliable in assessing the proportion of growing and resting hairs in a specific site, 7 ex-vivo scalp skins were examined histologically. Results showed that examination of plucked hair roots was a reliable method in assessing the proportion of growing and resting hair. There was no correlation between the treatment efficacy and the growth phases of hair (one way analysis of variance, P=0.116). In conclusion, growing hairs are not more susceptible than resting hairs to ruby laser injury. The clinical implications of this finding are discussed. TI - Ruby laser-assisted hair removal – correlation of efficacy with the growth cycle of human hair JF - European Journal of Plastic Surgery DO - 10.1007/s002380050230 DA - 2000-04-14 UR - https://www.deepdyve.com/lp/springer-journals/ruby-laser-assisted-hair-removal-correlation-of-efficacy-with-the-wTsCv0V0EQ SP - 127 EP - 131 VL - 23 IS - 3 DP - DeepDyve ER -