Grapefruit Seed Extract (GSE), also known as citrus seed extract, is a liquid derived from the seeds, pulp, and white membranes of grapefruit. It was discovered in 1972 by Dr. Jacob Harish, a physicist. This liquid is loaded with polyphenolic compounds that are chemically converted into quaternary ammonium compounds.
Benzethonium chloride and benzalkonium chloride, for example, are quaternary compounds that are toxic but have antibacterial, antiviral, and anti-fungal functions. The B vitamin choline is another quaternary compound which is non-toxic, and even essential for maintaining healthy neurological function and fat metabolism.
Today, GSE has been widely used in various fields for the better health of people, plants and animals. It is non-toxic, environmentally safe, and quickly bio-degradable. It has no side effects and is much cheaper than existing treatments or chemicals for similar applications, whether human, animal, or agricultural in scope.
As a Preservative in Food
GSE is a safe, natural, and an effective preservative as claimed by some food retailers.
As a Preservative and to Provide the Antimicrobial Benefits in Cosmetics
Cosmetics manufacturers use GSE both as a natural, harmless preservative and, in selected products, to provide the antimicrobial benefits of GSE.
As a Natural, Harmless Pesticide in Agriculture
Gardeners, both professional and homegrown, use GSE as a natural, harmless pesticide, and to provide the antimicrobial benefits of GSE where mold, fungus, rust, blight, etc., are a problem.
To Treat Skin Diseases, Injuries and Infections in Livestock and Pets
GSE is an excellent remedy for skin diseases, external injuries and fungal infections in livestock and pets. It can also cure the internal diseases caused by parasites, bacteria, and viral or fungal infections.
In Water Treatment
GSE is the best emergency water treatment to prevent disease when distillation by power is not possible, and water available is of questionable quality.