Leather Conditioner nourishes naturally tanned leather hides and synthetic materials, preventing them from drying out, cracking, and fading from the wear and tear of regular use. It also protects from UV rays that can deteriorate the leather over time. Leather Conditioner replenishes essential nutrients like Vitamin E that are regularly depleted by harsh elements like the sun. Regular use of the Chemical Guys Leather Cleaner & Conditioner Complete Kit keeps leather looking clean, feeling silky smooth, and soft and supple to resist cracking and breaking prematurely.