Master plant: Citrus × aurantium, Syn. C. paradisi
Rutaceae (Citrus family)
INCI: CITRUS GRANDIS SEED EXTRACT
The grapefruit is a sub-tropical citrus tree grown for its fruit which was originally named the "forbidden fruit" of Barbados. The fruit was first documented in 1750 by Rev. Griffith Hughes describing specimens from Barbados. The seed and pulp as a by-product of the juice industry is sold as cattle feed and is manufactured for use to make an extract.
GSE was originally developed by Dr. Jacob Harich, a nuclear physicist. In 1963, he journeyed to Florida, the heart of grapefruit country, and began research and later marketing of GSE.
Characteristics and substances:
There is good evidence that the extract of citrus grapefruit seed has low levels of antioxidant properties. Analysis research revealed the constituents of the seed extract and pulp are made up of flavonoids, polyphenols, ascorbic acid (commonly known as vitamin C), tocopherols, citric acid, limonoids, sterols, and minerals.