It is accepted that increased water intake has a positive influence in human skin physiology . The present study aimed to assess the impact of increased water intake on skin biomechanical behavior. 49 healthy female volunteers were chosen following strict inclusion criteria, after informed written consent. All procedures respected the principles of Helsinki declaration and subsequent amendments. Volunteers were divided in two study groups – group 1 ( n = 38 ) , mean age 24,30±5,53 with a mean daily consumption of water of 2130.7 ± 524.4 mL / day and group 2 (n = 11 ), mean age 27,40±8,10, with a mean daily water consumption of 3888.9 ± 535.6 mL / day. Water consumptions were previously calculated by a Food Frequency Questionnaire (FFQ) developed for this specific population. Volunteers were then asked to add 2000ml / day for 1 month, to their normal dietary habits. This value was based on the dietary reference value (DVR from EFSA) for women. Assessments of skin biomechanical properties involved the Cutometer system (Cutometer ® SEM 580 CK electronics) taking place at day zero (T0) , day 15 (T1) and day 30 (T2). The chosen biomechanical descriptors were maximum extensibility Uf (R0) retraction Ua (R8) , total elasticity Ua/Uf (R2) , elastic function Ur/Ue (R5) and viscoelasticity Uv/Ue (R6) obtained in zygomatic, forehead, ventral forearm, hand and, external leg. Descriptive and comparative statistics (SPSS 20.0) involved repeated-measures designs ANOVA (GLM) corrected by Bonferroni t-statistcs. A confidence level of 95 % was adopted. Statistically significant maximum extensibility (Uf) and retraction (Ua) were found in group 1 . The magnitude of the observed changes in other variables was lower however a decreasing trend with statistical significance in overall elasticity Ua/Uf , the elastic function Ur/Ue and viscoelasticity Uv/Ue was observed in group 1 . Results suggest that the amount of water available in the skin does influences the biomechanical behavior of the skin, especially in those individuals with lower daily water consumptions