Skin loses its vitality with age and repeated sun exposure as lines, loss of firmness and areas of increased pigmentation become more pronounced with time. Many of these changes are a direct result of sun damage. Sun exposure causes free radicals to form that damage collagen and elastin, two proteins that keep skin firm and wrinkle-free. Skin aging occurs prematurely in people who don’t shield their skin from the sun’s damaging rays. It is the mission of Lierac Paris is to repair skin damaged by the environment while protecting it from further assault.