Grape seed extract is a kind of polyphenols extracted from grape seeds. It is mainly composed of polyphenols such as proanthocyanidins, catechins, epicatechins, gallic acid, and epicatechin gallate. Grape seed is the seed of the grape. It is the waste of the winery. After drying, the grape skin and the grape stem are separated. Grape seed is rich in amino acids, vitamins and minerals, and has the functions of health care and beauty.
The main components of polyphenols: grape seeds contain polyphenols (GPS), mainly catechins and proanthocyanidins. The catechins, including catechins, epicatechins and their gallic acid esters, are the major monomeric components in grape seed and the constituent units of proanthocyanidin oligomers and multimers. Grease: Grape seed is rich in oil, accounting for about 12% to 15% of its weight. The oil contains a large amount of unsaturated fatty acids, of which the content of linoleic acid is between 58% and 78%. Volatile components: Grape seeds also contain a small amount of volatile components, most of which are alcohols, phenols, and terpenoids, all of which have high biological activity. Other Ingredients: In addition to the above-mentioned various substances, grape seeds also contain crude protein, amino acids and vitamins A, E, D, K, P and various trace elements such as calcium, zinc, iron, magnesium, copper, potassium, Sodium, manganese, cobalt, etc.
Grape seed extract (proanthocyanidin OPC) has very strong in vivo activity. Experiments have shown that the anti-free radical oxidation ability of OPC is 50 times that of vitamin E and 20 times that of vitamin C. Grape seed extract is one of the most potent antioxidants found to date from plant sources. In vivo and in vitro tests have shown that grape seed extract has an antioxidant effect 30-50 times that of vitamin C and vitamin E. The superior antioxidant efficiency has the powerful effect of scavenging free radicals and improving human immunity. Grape seed extract is rich in bioflavonoids and is a powerful essence for fighting free radicals (free radicals) and maintaining the health of microfilament vessels. Free radicals are one of the important causes of aging and many diseases. It is estimated that about 80%-90% of aging and degenerative diseases are related to free radicals. Therefore, grape seed extract has anti-oxidation and immunity to human body. Excellent results.