
Product Description
Grapefruit Seed Extract (often abbreviated GSE) is a concentrated liquid extract made from the seeds, pulp, and white membranes of the grapefruit (Citrus × paradisi), typically blended with glycerin for stability and used in supplements or personal-care products.
It’s widely marketed for its antimicrobial and antioxidant properties, with laboratory studies showing it can inhibit the growth of various bacteria in vitro and being used in some products for its antibacterial, antifungal, and antiviral activity.