An 8-week Full Face HUT Clinical Trial for HydroBoost (2.0/3.0)

* To investigate the product regiments\' performance on moisturization related skin healthy signs (skin moisturization, barrier function, elasticity, translucency, roughness and skin conditions) through instrumental evaluation, clinical grading and self-assessment before, during and after 8 weeks\' home usage under city environmental aggressors (Sun, change of temperature and humidity, wind and air pollution) among 3 product regimens and Non-treatment control; * To explore the linkage among products efficacy, ambient aggressors, and life habits; * To investigate product regimens\' tolerance and safety via Home Use Test; * To collect skin microflora/microbiome samples for potential research on skin microbiome distribution change as impacted by product application and/or environmental aggressors change (data will be analyzed and reported separately).