Caproil is a combination of caprylic acid and oleic acid (a component of olive oil.) Caprylic Acid is a broad spectrum fungicide which is especially effective against Candida Albicans yet harmless to friendly intestinal flora. It is effective not only against the yeast form of Candida but also the invasive mycelial form because it is absorbed by the intestinal mucosal cells. Oleic acid hinders the conversion of the yeast form of candida to the more injurious mycelial form.

Caprylic acid when taken alone is metabolized by the liver and does not get into the general circulation. It must exert its fungicidal effect in the intestinal tract or not at all. According to studies, just ten minutes after oral intake of straight capryic acid, more than 90% can be traced in the portal vein on its way to the liver. Conseqently, Caproil should always be taken with Psyllium Powder which will form a gel and release the caprylic acid trapped within over a period of time throughout the entire intestinal tract.