Kao accelerates sweat evaporation

The Japanese group has developed a technology designed to spread sweat across the skin, accelerating its evaporation. By forming a hydrophilic film using a combination of plate-like powder and porous silica, the liquid spreads instantly rather than beading up. This method increases the evaporation surface area, reducing drying time by 33% compared to bare skin – tested under hot conditions (30°C, 60% relative humidity). This innovation promises to minimise sticky skin sensations and odours while respecting the skin's physiological thermoregulation function.