The Kérastase Chronologiste Trio Christmas Set brings together three essentials for smoother, healthier-looking hair: the Chronologiste Bain Régénérant Shampoo, Chronologiste Masque Intense Régénérant and Overnight Youth Serum. The shampoo gently cleanses, the intensive mask deeply conditions, and the overnight serum works while you sleep to help target dryness, dullness, lack of volume, thickness and frizz. Suitable for all hair types, this complete routine leaves hair looking fuller, smoother and more youthful. The Kérastase Chronologiste Trio Christmas Set contains three products designed to care for hair showing signs of ageing. The set includes the Bain Régénérant Shampoo to cleanse, the Masque Intense Régénérant to condition and the Overnight Youth Serum to care for hair while you sleep.The shampoo gently cleanses the hair, while the intensive mask helps soften, smooth and condition the lengths. The Overnight Youth Serum is applied before bed and left in overnight to help improve the appearance of dryness, dullness, lack of volume, thickness and frizz.Used together, the three products leave hair feeling softer, smoother and more manageable, with a healthier-looking finish. Suitable for all hair types.