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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
(a) Hydration images of the skin on the volar side of the forearm of one of the volunteers extracted from the MoistureMap MM 100 device before and after application. (b) Sensory profiles. In vivo assays (n = 9). (c) Macroscopic aspect of the validated formulations and control.