The Nioxin System Kit 4 by Nioxin is a game-changer for those struggling with hair damage and looking to revive their locks. This kit, specifically designed for colored hair, consists of three essential products: shampoo, conditioner, and a scalp and hair treatment. Nioxin recommends applying the treatment directly to the roots, massaging it in to stimulate the scalp and hair follicles. The results speak for themselves - Nioxin's products have significantly improved the growth and appearance of hair, leaving it vibrant, strong, and shiny. The added bonus of heat protectant ensures that styling doesn't compromise the hair's health. While the price is not mentioned, the benefits of the Nioxin System Kit 4 make it a worthwhile investment for anyone seeking to restore and maintain their colored hair's vitality.