The first refill of Kerastase Serum youth that compensates for the loss of quality of gray and dull
hair. Designed for men and women, for colored hair, white hair or hair that is graying and losing intensity. Densifique Jeunesse Serum is a serum that preserves the youth of the hair. The fibers regain their original youth, brilliance has intensified and increased volume. In just three months we find a new capillary density.