System Restoration Cardio & Circulatory Herbal Supplement Cactus Grandiflorus Liquid Extract Gluten-Free We prepare our Cactus Extract from the fresh (undried) young tender stem of Selenicereus spp. cactus which is Sustainably Wildcrafted in its natural habitat. To assure optimal extraction of Cactus' bioactive compounds, we hand-harvest only the young tender stem which is then taken directly to our laboratory and promptly extracted while still fresh and succulent.Herb Pharm