Abstract: The present disclosure relates to a composition for skin improvement and a pharmaceutical composition for preventing or treating an inflammatory skin disease, the compositions including an umbilical cord-derived mesenchymal stem cell culture medium as an active ingredient. The compositions exhibit a wound relief, wrinkle improvement, regeneration, elasticity increase, moisturizing, barrier strengthening, anti-inflammatory or antioxidant effect, and thus can be effectively used as a cosmetic composition for skin improvement or a pharmaceutical composition for preventing or treating an inflammatory skin disease.

Abstract: The present invention relates to a wood panel comprising one or more bio-functional materials selected from the group consisting of loess, jade, bio stone, and germanium, and a method for preparing the same that enables the preparation of fiberboard or particle board onto which the functional materials are uniformly distributed without processing troubles by spray-coating wood fiber or wood flake with a mixed solution comprising aqueous thermoset resin having a solid content of 60˜70 wt % and the bio-functional materials in the form of fine particulate having an average particle size of 200˜400 mesh. The fiberboard, particle board, decorative ligneous flooring board, etc. have excellent antibacterial and antifungal functions, and at the same time they increase far-infrared radiation efficiency, blood circulation, metabolism, etc., while maintaining the intrinsic properties of the wooden particles.