Vitis vinifera extract
Use of grapes is known to date back to Neolithic times, following the discovery in 1996 of 7,000 year-old wine storage jars in present-day northern Iran. Further evidence shows the Mesopotamians and Ancient Egyptians had vine plantations and winemaking skills. Greek philosophers praised the healing powers of grapes both whole and in the form of wine. Vitis vinifera cultivation and winemaking in China began during the Han Dynasty in the 2nd century with the importation of the species from Ta-Yuan. However, wild vine “mountain grapes” like Vitis thunbergii were being used for wine making before that time.
Using the sap of grapevines, European folk healers sought to cure skin and eye diseases. Other historical uses include the leaves being used to stop bleeding, pain and inflammation of hemorrhoids. Unripe grapes were used for treating sore throats, and raisins were given as treatments for consumption (tuberculosis), constipation and thirst. Ripe grapes were used for the treatment of cancer, cholera, smallpox, nausea, skin and eye infections as well as kidney and liver diseases.
This fact sheet provides basic information about grape seed extract— uses, potential side effects, and resources for more information. The grape seeds used to produce grape seed extract are generally obtained from wine manufacturers. The leaves and fruit of the grape have been used medicinally since ancient Greece. Grape seed extract is used for conditions related to the heart and blood vessels, such as atherosclerosis (hardening of the arteries), high blood pressure, high cholesterol, and poor circulation.
Other reasons for the use of grape seed extract include complications related to diabetes, such as nerve and eye damage; vision problems, such as macular degeneration (which can cause blindness); and swelling after an injury or surgery. Grape seed extract is also used for cancer prevention and wound healing.
How It Is Used
Grape seed extract is prepared from the seed of grapes. It is available in capsule and tablet forms.
What the Science Says
Studies have found that some compounds of grape seed extract may be effective in relieving symptoms of chronic venous insufficiency (when veins have problems sending blood from the legs back to the heart) and reducing edema (swelling) after an injury or surgery. Small randomized trials have found beneficial effects of grape seed extract for diabetic retinopathy (an eye problem caused by diabetes) and for vascular fragility (weakness in small blood vessels). Larger trials are needed to confirm these findings.
Grape seed extract contains antioxidants, which help prevent cell damage caused by free radicals (highly reactive molecules that can damage cell function). Preliminary studies have shown some beneficial antioxidant effects; however, more research is needed. A study funded by the National Cancer Institute (NCI) found that grape seed extract did not reduce the hardening of breast tissue that can occur after radiation therapy for breast cancer. NCI is also funding studies to evaluate whether grape seed extract is effective in preventing breast cancer in postmenopausal women and prostate cancer.
All these benefitscan be found in Endolex, an excellent venotonic and vasculoprotective.
Endolex it is quickly absorbed at the intestinal mucosa and does not cause gastric pains.
- Each capsule contains Endolex: purified extract of grape seed (Vitis vinifera) with minimum 80% (oligomers procianidolici – 150 mg)