Used for decades by herbalists and naturopaths, Grapefruit Seed Liquid Extract is a versatile natural oil that can be used for a variety of purposes. You'll find Swanson Grapefruit Seed makes a great addition to cleansing products for both your home and body. It can also be used in creams, ointments and more. Swanson pure and natural Grapefruit Seed concentrated extract is delivered in a base of natural glycerin for topical and household applications. Our formula is strong, so we recommend diluting with distilled water, which makes our one ounce liquid extract go a long way. Find out more about Swanson Grapefruit Seed Liquid Extract