Rutin is a member of the vitamin P genus and is a glycoside of dehydroflavinone. It is a hydrogen transmitter and may be involved in the action of oxidoreductase enzymes in the body, influencing the activity of the thyroid gland and protecting adrenaline from oxidation. In vivo, it enhances the action of vitamin C and promotes its accumulation in the body. It maintains the elasticity of blood vessels, decreases their permeability, and reduces their fragility. The mechanism is that hyaluronic acid is a matrix component in the intercellular matrix of capillary walls. When it is hydrolyzed by hyaluronidase, the resistance of capillaries decreases, permeability and fragility increase and bleeding is easily caused. Rutin inhibits hyaluronidase and prevents hydrolysis of hyaluronic acid, thus enhancing capillary resistance and reducing its permeability and fragility. Rutin also promotes cell proliferation and prevents blood cell coagulation, as well is as diuretic, cough suppressant, hypolipidemic, hypotensive, ulcer surface protection, anti-inflammatory, and anti-allergic effects.