Kerastase Elixir Ultime Hair Oil-In-Serum transforms dull, frizzy hair into silky, luminous locks. This luxurious Valentine's Edition formula delivers 2X shinier results with 96-hour anti-frizz protection that lasts through humidity and heat styling. The lightweight oil-in-serum blend nourishes each strand while creating a protective shield against environmental stressors. Perfect for all hair types, it smooths the hair cuticle, enhances natural shine, and tames flyaways without weighing hair down. Apply a few drops to damp or dry hair, focusing on mid-lengths and ends. Watch your hair transform into glossy, manageable waves or curls with a salon-quality finish that turns heads. 75ml bottle — your essential luxury for radiant, frizz-free hair every day.