CONCLUSIONS
redness
ADVERSE EFFECTS
In this study, we investigated the impact of normal facial skin when exposed to a high‐temperature, low‐humidity indoor environment for a short period during winter. Our findings revealed that after 6 h of exposure, skin temperature, roughness, redness, and wrinkles increased on the facial skin, whereas hydration and TEWL remained unchanged. In addition, the forearm area showed a significant decrease in hydration and an increase in TEWL. However, using creams containing 5% ceramide significantly increased hydration and decreased TEWL in the forearm area. Moreover, cream application improved the facial skin elasticity, pore size, roughness, and wrinkles. These results indicate that even individuals with normal skin experience adverse effects when exposed to indoor winter environments for a brief period. The use of a cream containing ceramide could be an effective solution to address these issues.