Multifunctional bottle cap with integrated physiotherapy and skincare treatment elements

A bottle cap, comprising:

• a cover body configured to contact with an open end of a bottle body, the cover body having a through channel with a first end for positioning a straw body and a second end for contacting the bottle body;
• a contact plate configured to contact skin, the contact plate being attached to the cover body and forming an accommodating cavity between the contact plate and the cover body;
• one or more physiotherapy components installed in the accommodating cavity and configured to perform one or more therapies on the skin;
• a circuit board electrically connected to the one or more physiotherapy components;
• and
• wherein the bottle cap is configured to accommodate a dropper in a retrofit manner.

A bottle cap, comprising:

• a cover body configured to contact with an open end of a bottle body, the cover body having a through channel with a first end for positioning a straw body and a second end for contacting the bottle body;
• an accommodating cavity in the cover body to house one or more physiotherapy components;
• and
• wherein the one or more physiotherapy components act on a liquid in the straw to perform one or more reactions in the liquid.