Sage leaves contain a volatile oil represented by terpene substances , thujone , tuiol , salven , sabinol . The leaves also contain tannins, bitter substances , vitamin B1 , C, potassium, glycosides , polyphenols and resins .
Salvia is remarkable in many beneficial properties , but perhaps the most notable of which is to reduce perspiration ( antiperspirants pronounced effect ) .
Preparations fermentative processes in the intestine attenuates sage and favors the elimination of gases , stimulates bile secretion of the liver , have a slightly hypoglycemic , antispasmodic , astringent and antiseptic , bacteriostatic .
It also mentions a calming effect on the nervous system .