Grapefruit bioflavonoids (polyphenols) are converted into an extremely potent compound</br>Contains vegetable glycerine (67%) and grapefruit seed extract(33%)?? a compound derived from the seed and pulp of grapefruit</br>Made without Gluten and GMOs</br></br>Product Description</br></br>NutriBiotic GSE Liquid Concentrate is a natural compound derived from the seed and pulp of grapefruit.</br>