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Skin characteristics following repeated exposure to simulated outdoor and indoor summer temperatures in South Korea and Southeast Asia.

Authors :
Jang SI
Lee M
Jung Y
Jeong MK
Ryu JH
Kim BJ
Suh BF
Kim E
Source :
International journal of cosmetic science [Int J Cosmet Sci] 2021 Jun; Vol. 43 (3), pp. 352-358. Date of Electronic Publication: 2021 May 24.
Publication Year :
2021

Abstract

Background: Although changes in skin depend on the external environment, researchers have performed only a few studies on effect of the actual environment. Most studies have researched skin characterization based on changes in the humidity or temperature.<br />Aim/objective: This study aimed to evaluate changes in the skin based on the difference in indoor and outdoor temperatures and humidity during summer in South Korea and Southeast Asia.<br />Methods: Twenty-two female participants aged 25-39 years were included. Skin hydration, sebum (cheek, forehead), colour, transparency and pores of the participants were measured after a 30-min exposure to high temperature and high humidity (HTHH) environment and a 30-min exposure to low temperature and low humidity (LTLH) environment. Subsequently, exposure to HTHH environment for 30 min +LTLH environment for 30 min was performed after a total of 1 h and repeated.<br />Results: Repeated exposure to HTHH and LTLH environments increased the skin's sebum content and haemoglobin index. Additionally, skin elasticity was significantly reduced, with patients in their 30 s showing greater changes than those in their 20 s.<br />Conclusion: Repeated differences in temperature and humidity cause skin ageing, loosen skin vessels and reduce skin elasticity, thereby leading to skin ageing.<br /> (© 2021 Society of Cosmetic Scientists and the Société Française de Cosmétologie.)

Details

Language :
English
ISSN :
1468-2494
Volume :
43
Issue :
3
Database :
MEDLINE
Journal :
International journal of cosmetic science
Publication Type :
Academic Journal
Accession number :
33728685
Full Text :
https://doi.org/10.1111/ics.12702