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. 2020 Feb 10:13:165-172.
doi: 10.2147/CCID.S225043. eCollection 2020.

Consumption of Polyphenols in Coffee and Green Tea Alleviates Skin Photoaging in Healthy Japanese Women

Yoichi Fukushima  1 , Yoshinari Takahashi  2 , Yoshimi Kishimoto  3 , Chie Taguchi  3 , Norie Suzuki  3 , Mihoko Yokoyama  4 , Kazuo Kondo  3   5
Affiliations

Consumption of Polyphenols in Coffee and Green Tea Alleviates Skin Photoaging in Healthy Japanese Women

Yoichi Fukushima et al. Clin Cosmet Investig Dermatol. .

Abstract

Purpose: Hyperpigmentation of the skin can occur at any age depending on etiological factors but its intensity increases during adolescence in Japanese females and gradually develops further in adults. The purpose of this study was to characterize factors that influence skin hyperpigmentation, including age, skin type and dietary polyphenol sources.

Patients and methods: A cross-sectional survey of healthy Japanese women aged from 30 to 60 years (n=244) was conducted using food and environmental questionnaires and a VISIA™ facial photoimage analyzer.

Results: UV Pigmented Spot (PS) scores correlated negatively with the consumption of total polyphenols (TPs) (R=-0.224, p<0.001) and the rate of hyperpigmented spot development (PS score/age after 18 years of age) was suppressed by the consumption of TPs. This trend was independent of the melanin index and the skin type, which indicates the ability of the skin to tan after sun exposure. Consumption of coffee, the largest source of TPs, suppressed the PS score (p<0.001). Consumption of green tea, the second largest source of TPs, also suppressed the PS score, which was weaker than coffee but was statistically significant (p=0.029). The PS score was suppressed the most in subjects with both a high consumption of coffee and green tea.

Conclusion: Higher consumption of TPs may be beneficial to alleviate photoaging of the skin, and coffee as well as green tea contribute to suppress skin hyperpigmentation through adding large amounts of TPs in the diet.

Keywords: coffee; green tea; photoaging; polyphenol; skin hyperpigmentation.

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Conflict of interest statement

YF is affiliated with Wellness Communications Section, Nestlé Japan Ltd., Tokyo, Japan. YT is affiliated with Inary Corp., Tokyo, Japan. The authors report no other conflicts of interest in this work.

Figures

Figure 1
Figure 1
Examples of VISIA UV photoimages and UV Pigmented Spot scores. Images of five subjects in the study; the number at the bottom of each image is the PS score.
Figure 2
Figure 2
Distribution of UV Pigmented Spot scores and age of subjects in tertile groups divided by TP consumption, and UV Pigmented Spot development rate (PS score per year after reaching 18 years of age) and consumption of TPs. ANOVA p-value was p=0.002; *p=0.001 compared with the low TP consumption group.
See this image and copyright information in PMC

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