Oak - is a powerful, deciduous tree of beech family, reaching a height of 40 m and a trunk diameter - up to 1.5 m, with a well-developed and dense spherical crown. Oak bark is - a proven remedy for the treatment of skin diseases, mucous membrane of the oral cavity, larynx. It is very good in case of burns, struggles with sweating, diarrhea, helps in the treatment of certain women diseases, saves in case of burns and freezing burns.
One of the features of oak bark is a presence of tannins. By interacting with proteins, they prevent tissue irritation forming a kind of protective barrier. And also they struggle with pathogens. Besides, oak bark contains flavonoids (biologically active substances with a pronounced antioxidant effect), pectin, starch.