Equivalence of face and volar forearm for the testing of moisturizing and firming effect of cosmetics in hydration and biomechanical studies.

摘要: Synopsis The objective of the study was to compare measurements skin hydration and biomechanical properties performed on different zones face volar forearm. Two short-term (1 h) two long-term (3 weeks) studies were conducted with a moisturizing firming product, respectively, groups female volunteers dry skin. Measurements (Corneometer® Dermal Torque Meter® or DTM) forearm, 1 h after product application, 1, 2 3 weeks repeated twice daily application. While sebaceous-gland rich T-zone behaves differently, probably due sebum/skin, sebum/product and/or sebum/measuring device interactions, there are no statistically significant differences between made temple, cheek, maxilla The forearm is representative for measuring properties, relevant assessment efficacy cosmetic products destined facial use.