Wholesale Self-Heating Shoulder and Neck Warmers Patches

The ingredients in the shoulder and neck patch are mainly iron powder, activated carbon, salt and other substances. After external application, the moisture in the air comes in contact with the activated carbon and other substances in the shoulder and neck patch, which heats and evaporates the water and turns into water vapor to emit heat, which accelerates the local blood flow.

Maxwarm is a professional shoulder and neck warmers factory who can provide custom service.