If the new SPA machine has the function of self-cultivation and beauty. Only suitable for people with healthy skin. If your skin has an ulcer or wound, please use it after the skin recovers. If you are allergic to skin or metal, you can try it on the inside of your arm or behind your ear first, and then judge whether you can use it. If you are pregnant, epileptic, have a pacemaker and similar devices, wear a metal stent, have a metal implant in your body or get sick, please consult a doctor before using it.