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Tseng, Ya‐Ping; Liu, Cheng; Chan, Leong‐Perng; Liang, Chia‐Hua
Journal of cosmetic dermatology, 20/May , Letnik: 21, Številka: 5Journal Article
Background Coffee and coffee products are known potentially to reduce levels of oxidative stress biomarkers in humans. Objective This investigation evaluates the effects of coffee pulp extract as a functional supplement (in coffee pulp drink, CPD) and a cosmetic ingredient (coffee pulp serum, CPS). Patients/Methods The effects of CPD and CPS for anti‐oxidation and anti‐aging were investigated. Forty subjects were randomly allocated to CPD or placebo drink groups (50 ml of a CPD/placebo drink daily for 8 weeks for each subject), and another 40 subjects were recruited to CPS or placebo serum groups (about 3 ml of a CPS/placebo serum day and night/daily for 4 weeks for each subject) in a double‐blind study. Results The CPD and CPS (20%) can increase free radical scavenging activities by 93.3% and 85% (p < 0.001) for DPPH, 94.5% and 61.3% (p < 0.01) for ABTS·+, 43.8% and 15.3% (p < 0.05) for NO· than placebo. The inhibition of tyrosinase activity was increased by 91.6% and 51.0% (p < 0.05) after CPD and CPS application. The CPD comprehensively improved the moisture, brightness, elasticity, spotting, texture, and collagen content of skin for most subjects after 8 weeks, relative to the baseline without treatment (p < 0.05). After 4 weeks of CPS serum consumption, the brightness, elasticity, spotting, UV spots, and collagen content of skin were slightly better than those at week 0 (p < 0.05). Conclusions The daily consumption of coffee pulp extract products can slow the skin aging process and improve skin health.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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