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Grapefruit seed extract (GSE) is a quaternary compound converted from the bioflavonoids (naringin, isosacuranetin, neohesperidin, hesperidin, dihydrocampherol glycoside, poncirin, quercetin glycoside, campherol glycoside, apigenin rutinoside, to name a few) found in grapefruit seed and pulp. Grapefruit seed extract also contains high levels of vitamin C and E. The important substances have an antioxidant action and can neutralize free radicals that damage cells.
Liquid Grapefruit extract is made by concentrating grapefruit seeds and pulp into a liquid basis of vegetable glycerin. This liquid is loaded with polyphenolic compounds. The finished product is a viscous, yellow-amber colored liquid that features a taste that is both bitter and acidic. Pure vegetable glycerin is added to reduce the bitterness and acidity to a tolerable level and to reduce the possibility that incidental contact could cause irritation to the skin or mucous membranes. Grapefruit seed extract has a slight citrus smell.
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