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Water content at different skin depths and the influence of moisturizing formulations

corresponding

MAURICIO GUZMÁN-ALONSO1, TANIA M. CORTAZÁR2
1. Innovation and Development Centre, Belcorp, Tocancipá, Colombia
2. National University of Colombia. Science Faculty. Department of Chemistry, Bogotá, Colombia

KEYWORDS: Hydration, skin water content, depths of the skin, SC, epidermis, dermis.
ABSTRACT:
Proper hydration is absolutely critical to obtaining healthy skin. Hydration is the most basic consumer expectation toward a skin care product and is therefore, the most common and functional benefit promised by the cosmetics industry. Exists a plethora of endogenous and exogenous ingredients, and moisturizing formulations that contribute to the maintenance of water in the skin, covering various mechanisms and interactions that influence skin functionality and structure. Currently it is known in detail the skin composition and some of the interactions of its molecules involved in maintaining the hydration and water flow.  This review will describe some aspects of skin hydration, molecules and formulations involved in the modulation of water content at different skin depths, and briefly will present methodologies used in the evaluation and information that they provide about the complex process of the skin hydrationand moisturizer influence.

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