Bosley Defence KIT Normal to Fine Color-Treated Hair. BosDefense Haircare for Normal to Fine Hair. Kit Includes: 1. Bosley Bos.Defence Nourishing Shampoo for Color-Treated Hair 5.1oz. Gentle, sulfate free cleanser that helps to create a healthy environment for the hair and scalp, while extending the life of color. 1. Bosley Bos.Defence Volumizing Conditioner for Color-Treated Hair 5.1oz. Weightless conditioner for the hair and scalp. 1. Bosley Bos.Defence Thickening Treatment for Color-Treated Hair 3.4oz. Leave in intensive treatment.