What is cat moss? Feline lichen is a highly contagious skin and mucous membrane disease. Not only is it easy to infect cats, but it is also easy to infect people. However, cats have a variety of skin problems. Use our products directly on your pet's skin. If the skin is fluorescent, it's cat moss. how to use? Brightens when exposed to product.When cat owners are not sure if a cat's skin problem is cat moss, if the cat has moss, the cat's affected area will turn green under Wood's light. This basically confirms that the cat has cat moss. Professional Detection Lights: Lights specially designed to detect cat moss, can easily detect if your cat has cat moss.Built-in lithium battery + charging indicator, USB fast direct charging. Strong compatibility, fast charging, convenient, safe, practical and convenient storage: very small, can be carried in your pocket, and has a waterproof design.Best Gift: This is the best gift for pets. Are you worried about your pet hiding a skin disease under the hair? Buy it for your friends and your health