TYR and psoriasis: There are 22 Dendrobium species with traditional uses for treating dermatological disorders by local people in eight countries, and there are 131 compounds from Dendrobium plants reported to possess anti-inflammatory, antimicrobial, antioxidant, antiaging, anti-psoriasis, and tyrosinase-inhibitory activities, which implies that Dendrobium plants are important resources for the discovery of active compounds and the development of new drugs and cosmetics.