Body heat patches provide portable warming through an exothermic reaction. Understanding the science behind how they generate and retain heat helps ensure proper use.
- Oxygen-activated heat generation
Iron powder, activated charcoal and water initiate an oxidation reaction upon air exposure. This generates heat up to 104°F. - Long-lasting warming
Insulating outer layers like non-woven fabrics reduce heat dissipation for lasting warmth. Adhesives conduct heat to the skin.
- Temperature regulation
Direct skin contact regulates the heat to avoid burns. Patches reach peak temperature shortly after application and gradually cool. - Boosted circulation
The warming effect stimulates blood flow to the applied area. This provides musculoskeletal pain relief. - Usage and disposal
Patches are single-use. The ingredients deplete after one application. Remove after 8-12 hours and avoid re-using depleted patches.
Understanding the technology inside heat patches helps maximize their convenient warming benefits.