Webb Nutrition® Myo Inositol capsules have been manufactured to the highest standards they come in a handy resealable foil pouch for hygiene and freshness. Absolutely no additives, just pure Myo Inositol powder encapsulated! Myo Inositol, is an non essential naturally occurring sugar found in many foods which plays a structural role in the body as a major component of cell membranes, it has antioxidant properties and used as a PCOS supplement.