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Green tea moisturizer improves skin hydration in elderly

Oentarini Tjandra, Linda J Wijayadi, Marcella E Rumawas
Submission date: Friday, 14 July 2017
Published date: Thursday, 08 February 2018
DOI: http://dx.doi.org/10.18051/UnivMed.2018.v37.3-12

Abstract


BACKGROUND
Dry skin is a major skin health problem in elderly. Green tea, which has an antioxidant effect, has recently been used as an active ingredient in moisturizing creams; yet the effect has not been well studied. This study compares the skin hydration effect of green tea and vitamin E moisturizer among elderly.

METHODS
This quasi-experimental study involved 60 elderly living in Tresna Werda Budi Mulia 4 Social Institution, Jakarta. Using the Runve HL 611 skin analyzer, skin capacitance was measured prior to experiment and every following week during the 5-week application of green tea and vitamin E skin moisturizer on both forearms. The consecutive measurement data was analyzed using Generalized Estimating Equation to compare the relative changes in skin hydration between the two moisturizer groups over 5 weeks of intervention.

RESULTS
The green tea moisturizer showed more significant increases in skin hydration level than the vitamin E moisturizer at all measurement sites on right arm and proximal left arm (p= 0.021), and medial and distal left arm (p= 0.034). Skin hydration levels significantly changed over time at proximal (p=0.021), medial (p=0.006) and distal (p=0.006) right arm, and medial left arm (p=0.021). A parallel trend of skin hydration improvements for both moisturizer groups indicated no correlation between the moisturizer type and the duration of usage (p >0.05) in all measurement locations. No side effects were observed during application period in both groups.

CONCLUSION
Routine use of moisturizer containing green tea may improve skin hydration in elderly.

Keywords


Green tea moisturizer; vitamin E; skin hydration; elderly

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