Fresh nettle leaves contain twice as much vitamin C as blackcurrants and more carotene than carrots. Nettle leaves contain chlorophyll, flavonoids, tannins (up to 17%), protein, coumarins and formic acid, vitamin C, vitamin K (42-45 mcg / g), vitamin B1, organic acids, amino acids, glycosides, protein, potassium, calcium, iron (up to 6.3%), fat, carotenoids (up to 50 mg%), starch (up to 10%). They promote the metabolism of the whole body, increase the amount of hemoglobin and erythrocytes in the blood, narrow blood vessels, promote blood clotting, tissue granulation and epithelialization, tone the uterine smooth muscle, normalize the menstrual cycle. Do not use if you are taking a blood thinner or if you are expecting a baby.