The Kérastase Chronologiste Duo is two-step treatment designed to transform dull, tired hair. The unique, advanced formulas provide essential nutrients & moisture to recover hair to leave it feeling silky smooth. The Set Contains: Kérastase Chronologiste Revitalizing Bain Shampoo (250ml) Regenerate locks with Kérastase Revitalizing Bain Shampoo, a concentrated care formula that combines vitamins A & E to cleanse & revitalise hair from root to tip. Perfect for all hair types, the shampoo works to rid the scalp of impurities whilst strengthening hair fibres with Abyssine (a regenerating molecule) & imparting mirror-like shine. Safeguards hair from external aggressors & helps to maintain colour integrity. Expect revitalised hair that looks & feels healthy & strong. Kérastase Chronologiste Revitalizing Masque (200ml) Look after your hair with this revitalising hair mask, a luxurious formula that combines naturally derived ingredients to condition & soften the hair. Golden & luminescent, the rich formula works to add shine, bounce & texture for healthy-looking, voluptuous locks. Experience its range of luxurious textures & witness revitalised, purified results.