Damage to hair follicles by normal-mode ruby laser pulses

Comparison of Long-Pulsed Alexandrite and Nd:YAG Lasers, Individually and in Combination, for Leg Hair Reduction

“…Laser-assisted photoepilation or laser hair removal, as first reported in 1996, is accomplished through destruction of the follicular unit. 1 The ability to remove hair without damaging the surrounding skin is based on selective photothermolysis. Laser hair removal provides hair-free intervals of several weeks, which lengthen with repeated treatments, and the hair regrowth becomes sparser and finer.…”

“…Laser hair removal provides hair-free intervals of several weeks, which lengthen with repeated treatments, and the hair regrowth becomes sparser and finer. 1,2 During the past decade, laser hair removal has become an accepted and popular means of achieving hair reduction. 1,3,4 Recently, devices with varying wavelengths and pulse durations gave specialists a variety of alternatives to remove hair.…”

Hair Removal by Using Laser Different

“…They have the ability to penetrate deeper than ruby lasers and are less absorbed by epidermal melanin; they have had greatstaying power in treating many skin types. In (10) showed that with a variable-pulsed alexandrite laser, hair reductions of 40% to 56% could be achieved at 6 months after a single treatment. In (11)(12)performed work on the long-pulsed alexandrite lasers and showed similar efficacies with minimal adverse effects.…”

Traitement laser de la peau

“…Le traitement des cheveux (surtout de couleur foncée) est rendu possible par la présence particulièrement abondante de pigments de mélanine dans la phase de croissance. Les rayons pulsés de laser réchauffent sélecti-vement ces cheveux et détruisent ainsi les structures matrices environnantes [13,14]. Comme une partie des cheveux seulement se trouve en phase de croissance à un moment donné, plusieurs séances (à plusieurs semaines d'intervalles) sont nécessaires.…”