Lusters Short Looks ColorLaxer 3 N 1 Semi Permanent, Diamond Black for a gentle semi permanent colour, silky straight hair, and patented conditioning in a one step system. Achieve maximum straightness, fabulous colour and conditioning all at the same time. Your hair feels healthy, looks healthy with beautiful shine and body. One Strength for All hair textures, for hair up to 4 inches in length. Ammonia free, no peroxide and no scalp staining.