The Vcaps capsules used are manufactured by Capsugel, and produced using the raw material, hypromellose. Hypromellose is a cellulose material derived from softwood trees, mainly pine and spruce trees that are grown and harvested from plantations in the southeastern United States. The hypromellose that is used to manufacture these capsules complies with all compendia requirements as presented in the harmonized USP (United States Pharmacopeia), EP (European Pharmacopeia) and JP (Japanese Pharmacopeia) monographs.