Kérastase Hair care products. CHRONOLOGISTE 2-PIECE SET: MASK 200ML +PEARLS 50ML. Complete hair treatment that revitalizes hair fiber, nourishes, reconstructs and protects from sun rays. The pearls contains Squalane (essential oily acid that deeply nourishes dry hair), with Vitamins A & E and Pacific water. The mask is based on Bisabolol (molecule whose relief properties help relax the hair scalp), Gluco-lipide (hair regenerator), cationic product and ceramides. The combination of pearls and ceramides provides a nourished finish, soft and bright.