2009
DOI: 10.1159/000231524
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Variation of Skin Surface pH, Sebum Content and Stratum Corneum Hydration with Age and Gender in a Large Chinese Population

Abstract: Background and Objectives: Evidence suggests the importance of skin biophysical properties in predicting diseases and in developing appropriate skin care. The results to date of studies on skin surface pH, stratum corneum (SC) hydration and sebum content in both genders and at various ages have been inconclusive, which was in part due to small sample size. Additionally, little is known about the skin physical properties of Asian, especially Chinese, subjects. In the present study, we assess the difference in s… Show more

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Cited by 222 publications
(293 citation statements)
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“…For example, Marrakchi and Maibach demonstrated that sebum content on the forehead in the aged (aged 66-83 years) is higher than in a younger cohort (aged 24-34 years), while no differences in sebum content between young and old subjects have been observed in another study. In contrast, the sebum content is significantly higher in younger than in older subjects [16], this suggestion is appropriate with the finding in our study.…”
Section: Discussionsupporting
confidence: 85%
“…For example, Marrakchi and Maibach demonstrated that sebum content on the forehead in the aged (aged 66-83 years) is higher than in a younger cohort (aged 24-34 years), while no differences in sebum content between young and old subjects have been observed in another study. In contrast, the sebum content is significantly higher in younger than in older subjects [16], this suggestion is appropriate with the finding in our study.…”
Section: Discussionsupporting
confidence: 85%
“…Hydrolipidic fi lm represents an important modulator of cutaneous barrier functions (1)(2)(3)(4)(5), particularly in SC hydration. Moreover, sebum transports antioxidants to the skin surface (e.g., vitamin E), preventing aging ( 3,13,14 ).…”
mentioning
confidence: 99%
“…), and SCH and TEWL alterations are associated with some skin disorders (16,17), the knowledge of their daily variation could be helpful for results interpretation. In humans, some circumstances may produce loss or attenuation of the circadian rhythms (elderly, jet-lag, shift work or light alterations), which could in turn influence sleep and skin functionality (18).…”
Section: Discussionmentioning
confidence: 99%