↼Safe and Non-Irritating: This mugwort patch adopts natural Chinese herbal medicine ingredients, which are safe and effective to use, and have no side effects. You can use it with confidence. ↼Self-heating Design: The heating patch is sticky and not easy to fall off when attached to the body. It has a self-heating design. After cleaning the skin, just stick the patch on the knee. ↼Relieves Fatigue: The moxibustion patch releases warm and comfortable heat to help you relax your muscles, relieve f