Influence of exposure to summer environments on skin properties

Hot environments cause the production of more sweat, increasing hydration levels, sebum secretion, TEWL, and greasiness and reducing skin pH. After acclimatization, skin hydration on the cheek decreases because of sweat evaporation. Cosmetics that are marketed for use in summer should control sweat and sebum secretion, solve related inconveniences, and provide moisture, especially on the cheeks.