Postquam Keractiv Smooth Mask With Keratin 150ml is a deep-repairing hair treatment formulated with keratin to restore strength, shine, and softness. It deeply penetrates the hair fiber to repair damage, control frizz, and smooth the cuticle. Ideal for dry, damaged, or chemically treated hair, this mask provides long-lasting hydration and leaves hair more manageable, silky, and healthy-looking after every use.