The Sebastian Professional Penetraitt Strengthening and Repair Conditioner is formulated to deeply penetrate the hair fiber, providing intense conditioning and repair for chemically treated and damaged hair. This professional-grade formula helps to fortify the hair structure, leaving it feeling refreshed, strong, and resilient without weighing it down. Ideal for regular use, this conditioner works in synergy with the Penetraitt Shampoo to restore vitality and improve manageability. Experience salon-quality results with enhanced softness and shine.