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Preservatives & Antioxidants

Grapefruit seed extract


Grapefruit seed extract

Stock Status: In Stock
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Our Grapefruit Seed Extract is professional strength. It is 60% GSE in 40% vegetable glycerin. It is not the usual 33% found elsewhere. Please be sure to take that into consideration when using a recipe that simply calls for "GSE". GSE has a shelf life of 7-9 years. It is said to be anti-microbial, anti-septic, anti-bacterial, astringent and does also have some antioxidant activity.There are many grades of grapefruit seed extract. 

The antibacterial and antifungal properties of grapefruit seed extract make it an ideal cosmetic preservative in products such as shampoos, creams, lotions, scrubs and soaps. It is soluble in a variety of mediums, making it simple to incorporate into existing beauty and personal care formulations.

The extract of grapefruit seeds and pulp is used worldwide for its natural antibacterial and antifungal properties. In laboratory studies, this particular extract has demonstrated activity against gram-positive and gram-negative bacteria including E. Coli, Staph. Aureus, as well as fungi such as Pseudomonas Aeruginosa, Aspergillus Flavus and Aspergillus Niger.                                                                                                                                            

Grapefruit Seed Extract (GSE) is a citrus seed based anti-microbial used as a preservative in skin care products. GSE is made with the extracts of citrus seeds and pulp. It is blended with vegetable glycerin to make it non-irritating to the skin and mucous membranes when used in formulations. GSE is even safe enough to use as a disinfectant for drinking water when necessary.

Wear gloves while handling Grapefruit Seed Extract. GSE can be irritating to the skin in its undiluted form.

INCI Nomenclature: Grapefruit (Citrus Grandis) Extract (and) Glycerin


Cosmetic Uses

Grapefruit Seed Extract and its use in Cosmetics

Grapefruit Seed Extract is a potent, broad-spectrum antimicrobial agent that is also safe to handle. It is fully biodegradable, requires no special equipment, is non-corrosive, and has a 30 year track record of safety and effectiveness as a human therapeutic.

Cosmetics manufacturers use grapefruit seed extract both as a natural, harmless preservative and, in selected products, to provide the antimicrobial benefits of grapefruit extract.

Grapefruit seed extract will protect you as a manufacturer from potential liability and protect the customer from exposure to pathogenic microbes.

Products that contain as little as 0.05 to 0.1%  have an indefinite shelf life.

In concentrations up to 1 or 2% of volume total, grapefruit seed extract is useful not only in preserving the product, but also in protecting the consumer from bacterial infection, as in first-aid sprays, lip-balms, and ointments.

It will greatly extend the shelf-life of hand-crafted soaps.

Using as little as 0.05%, soaps will retain colour, aroma, and appearance for extended periods.

It mixes well with virtually all solvents, including water, alcohol, and organic solvents

Usage 0.5% - 1.5% 

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Customer reviews

(1 Customer reviews)
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This is an amazing natural preservative. I had problems with other preservatives I purchased from other companies. My creams started creating bacteria on them and couldn't resolve the problem until I changed to this product. Now I can sell my products with the comfort of knowing that this natural preservative is effective. Thanks Jan!

Debbie | Ottawa | November 2016