It contains an essential oil containing sulfur; sugars such as: glucose, fructose, sucrose, maltose (up to 11%), inulin, phytin, in addition, nitrogenous substances (up to 2.5%), vitamins C (10 mg%), B1 (60 mg%), provitamin A (carotene), flavonoids (quercetin and its glycosides), traces of iodine. Leaves ("feather") contain essential oil, sugars, vitamins C (20 mg%), B2 (50 mg%), provitamin A (4 mg%), citric, malic and other acids.