Undecyn combines the gut flora-enhancing qualities of undecylenic acid with betaine HCl and the broad-spectrum activity of berberine to help create a healthy balance of GI and vaginaI microbes.* In women's health in particular, the relationship between the health of gut flora and vaginal flora is receiving increased recognition. Thorne's Undecyn combines the flora-enhancing qualities of a unique form of undecylenic acid – which is more effective than caprylic acid – with betaine hydrochloride. This formulation enables Undecyn to maintain full potency throughout the gastrointestinal tract. Berberine, which also helps to maintain a healthy balance of normal bacteria in the intestines, is also included in Undecyn.**