1. Hydrocolloid protects wounds from dust and viruses in the air. 2. Emergency & Versatile & Concentrated care with various sizes - 7mm, 10mm, 12mm. 3. Convenient use. 4. Low irritation. 5. Clear - It is fine to put on makeup when you go out. How to use 1. Wash and dry the target area. 2. Remove the film and stick on the target area. (Do not use lotion or other products before use.) 3. As the patch turns white, replace it with new one.