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. 2022 Apr 27:9:870926.
doi: 10.3389/fmed.2022.870926. eCollection 2022.

Facial Skin Aging Stages in Chinese Females

Xiao-Xiao Yang  1   2 , Meng-Meng Zhao  1   2 , Yi-Fan He  1   2 , Hong Meng  1   2 , Qing-Yang Meng  3 , Qiao-Yin Shi  3 , Fan Yi  1   2
Affiliations

Facial Skin Aging Stages in Chinese Females

Xiao-Xiao Yang et al. Front Med (Lausanne). .

Abstract

Background: Facial skin is exposed to the environment, which marks it with obvious signs of aging. Based on multi-dimensional non-invasive evaluation data, female facial skin can be characterized in detail. However, there are few studies on the general aging rules of facial skin. Most skin aging studies divide the ages into 5-10-year intervals, so they have lacked dynamic matching with facial skin aging.

Aim: To explore facial skin aging rules, discuss the main parameters of facial skin aging, propose an unequal-distance aging division method based on the main skin parameters, and study the skin characteristics of Chinese women of different aging stages.

Methods: We comprehensively described the skin status as 24 non-invasive skin parameters belonging to five dimensions: skin wrinkles, texture, stain, color and barrier function. We performed polynomial fitting on the 21 skin parameters that were significantly correlated with age and derived the rules of aging in the different dimensions. Based on the wrinkle dimension, the facial skin aging process was divided into four stages, and the skin characteristics of the different stages were compared.

Results: Skin wrinkles increased, texture deteriorated, acne decreased, pigment spots increased, skin tone darkened, and sebum secretion decreased with age, according to the polynomial fitting. The aging stage was divided into an incubation period (18-30 years old), an aging occurrence period (31-42 years old), a rapid aging period (43-47 years old), and a stable aging period (48-60 years old), according to the wrinkles. Different aging stages had different skin characteristics.

Conclusion: The incubation period is the critical period for the appearance of skin stains; the skin texture gradually deteriorates during the aging occurrence period; the rapid aging period is a critical period for the aging of skin parameters; skin status during the stable aging period is the worst.

Keywords: Chinese female; facial skin; individual skin care; non-invasive evaluation; skin aging.

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Conflict of interest statement

Q-YM and Q-YS were employed by the Shanghai Pechoin Daily Chemical Co., Ltd. The remaining authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

FIGURE 1
FIGURE 1
Graphical overview of the facial skin aging study in Chinese female population aged 18–60. *P < 0.05 between the two aging stages.
FIGURE 2
FIGURE 2
Thermal map of the correlation coefficients between skin parameters and age. Skin parameters negatively correlated with age (A). Skin parameters positively correlated with age (B).
FIGURE 3
FIGURE 3
Skin parameter–age polynomial fitting curve models (some curves are in a consistent range through proportional scaling). Skin aging trend of the wrinkle dimension (A). Skin aging trend of the texture dimension (B). Skin aging trend of the stain dimension (C). Skin aging trend of the skin tone dimension (D). Skin aging trend of the barrier dimension (E).
FIGURE 4
FIGURE 4
One-way ANOVA of 20 skin parameters in 4 aging stages (Z score). Differences in skin parameters of the skin tone dimension between the four aging stages (A). Differences in skin parameters of the texture dimension between the four aging stages (B). Differences in skin parameters of the winkle dimension between the four aging stages (C). Differences in skin parameters of the stain dimension between the four aging stages (D). Differences in skin parameters of the barrier dimension between the four aging stages (E). *P < 0.05 between the two aging stages.
FIGURE 5
FIGURE 5
Typical map of the four aging stages. Typical map of the incubation period (A1,A2). Typical map of the aging occurrence period (B1,B2). Typical map of the rapid aging period (C1,C2). Typical map of the stable aging period (D1,D2).
FIGURE 6
FIGURE 6
The academic value and application orientation of this research.
See this image and copyright information in PMC

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