Constituents of the Tea
The medicinal value of the tea is due to the presence of a large number of pharmacologically active compounds such as rosmarinic acid, allantoin, symphytine, echimidine, tannins, lasiocarpine, pyrrolizidine alkaloids, phytosterols, phenolic compounds, etc. It is also rich in vitamin B12, phosphorous, calcium, nitrogen, and potassium.