Kérastase Sérum Universel Chronologiste is a multi-purpose hair serum that helps to revive and rejuvenate all hair types. Hair type Ideal for all hair types. Hair texture Suitable for all hair textures, from fine to thick. Hair concerns Addresses multiple hair concerns, including dryness, damage, frizz, and lack of shine. Key benefits Provides deep hydration and nourishment Repairs and strengthens damaged hair Smoothes frizz and flyaways Restores hair's natural shine and radiance Protects hair from environmental damage and heat styling Ingredients Abyssine: Provides scalp and hair protection from external aggressors. Vitamin E: An antioxidant that helps to protect the hair from environmental stressors. Ceramides: Help to strengthen the hair fiber and smooth the cuticle. How to use Apply 1-2 pumps of Kérastase Sérum Universel Chronologiste to towel-dried or dry hair, focusing on the lengths and ends. Do not rinse. Style as usual. Can be used on both wet and dry hair. Use daily for best results.