Abstract Title:

Synergistic effects of green tea and ginkgo biloba extracts on the improvement of skin barrier function and elasticity.

Abstract Source:

J Drugs Dermatol. 2014 Sep ;13(9):1092-7. PMID: 25226010

Abstract Author(s):

Patricia M B G Maia Campos, Mirela D Gianeti, Daiane G Mercurio, Lorena R Gaspar

Article Affiliation:

Patricia M B G Maia Campos


This study aimed to evaluate the effects of cosmetic formulations containing green tea (GT) and/or Ginkgo biloba (GB) extracts by preclinical and clinical studies. For the preclinical study, histological analysis was performed after 5 day-period of formulations application on the dorsum of hairless mice. For the clinical study, the formulations were applied on the forearm skin of 48 volunteers, and assessed before and after 3 hours and after a 15 and 30 day-period of application. Histological analysis showed that the formulation with GT (FGT) and the association of GT and GB (FBlend) significantly enhanced viable epidermis thickness and the number of cell layers, suggesting a moisturizing effect in skin deeper layers and increased cell renewal. The clinical efficacy studies showed that the extracts had a moisturizing effect and improved skin microrelief. In addition they synergistically acted on the skin elasticity and skin barrier function. In conclusion, the formulation containing a combination of green tea and Ginkgo biloba extracts effectively improved skin conditions and the effect of formulation FBlend on the improvement of skin elasticity was more pronounced. Finally, the results of the present study revealed other important clinical benefits of Ginkgo biloba and green tea extracts on the skin besides their already known antioxidant action.

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