Sisleÿa L'Integral Anti-Age Longevity Essential Serum is a revolutionary serum specifically designed for skin showing advanced signs of aging. Skin’s needs and concerns evolve. Signs of aging appear gradually, and then, at a certain point in time, they intensify and new skin concerns start to appear: uneven tone, loss of firmness, yellowness, thinning & dryness. The Longevity Essential Serum presents an ultra-innovative approach, based on 4 actions, to target the specific needs of skin experiencing advanced aging. 1 fl. oz. Made in France.