The FURminator bathing brush has gentle teeth, so the tool can be used on some pets with sensitive skin. The bathing brush works to loosen pet hair for better penetration of shampoo and conditioner, helping to promote healthy, shiny coats in dogs and cats. Use this brush as a convenient monthly solution for bathing. When to use: When using shampoo, use when you would normally shampoo your pet, ideally monthly. Use after your pet has been wet. When using conditioner, apply after shampooing as normal - or using another bathing brush full of shampoo.