Allergy Research Group.VascuStatin Formula is a water extraction of the leaves of the herb Convolvulus arvensis, commonly known as bindweed, and is rich in proteoglycan mixture (PGM). The bindweed contained in VascuStatin is grown in Wyoming, and the toxic alkaloids are removed by a proprietary process. As a dietary supplement, 4 capsules one to three times daily, or as directed by practitioner. Sensitive individuals may want to start with a lower dose. Keep in a cool, dry place, tightly capped. Free of preservatives, diluents, or artificial additives.