This professional-grade Keratin Hair Mask from Serge D'Estel Paris is formulated for deep conditioning and smoothing treatments. It features a 100% Vegan formula designed to restore hair fiber strength and manageability, closely mimicking popular Brazilian Smoothing treatments. Ideal for revitalizing dry, damaged, or unruly hair, this mask works to reduce frizz and enhance natural shine, leaving hair feeling soft and resilient.