Spearmint (Mentha spicata), used in the form of infusions, as peppermint, positive effect on the digestive system in the case of indigestion or overeating, improving bowel movement, the effect of Bile and antifungal agents and aids digestion of fat. Medicinal raw material is a leaf (Mentha Folium spicatae) containing multiple active ingredients: essential oil (source of menthol), tannins, flavonoids (including hesperidin, luteolin), terpenes (cineol, pinene). Modern studies suggest a role for the use of preparations of spearmint reducing the level of testosterone in women. The dietary supplements containing extracts of mint leaves are used as an ingredient in diet to support the functioning of the digestive system, facilitate the absorption of nutrients. mono-preparation supplement from the leaves of mint green and multi-herbal blends available at www.muscle-zone.pl.