الوصف
Grape Seed Extract OPC
Latin Name: Vitis vinifera
Active Ingredient: OPC procyanidolic oligomers proanthocyanidins
PCOs
Specifications: *5%
Test Method: UV-VIS
Free Sample Support
As its name implies, grape seed extract is derived from the small
seeds (and occasionally the skins) of red grapes*-the same kind
that are pressed to make wine. Used extensively in Europe, grape
seed extract is rich in flavonoids, phytochemicals that have
antioxidant properties some consider even greater than the old
standbys vitamin C and vitamin E. Antioxidants are believed to
prevent and control numerous ailments by safeguarding cells against
the ravages of unstable oxygen molecules called free radicals.
The most valuable flavonoids in grape seed extract are
procyanidolic oligomers (also known as proanthocyanidins), commonly
called PCOs. Beyond their antioxidant powers, PCOs are thought to
improve blood circulation and help strengthen blood vessels. These
actions benefit people with heart disease and cancer.
An alternative source for PCOs is Pycnogenol (pik-NODGE-en-all),
the brand name for a PCO derived from the bark of the maritime
pine. Experts compare its health benefits to those of grape seed
extract, and in fact many research studies examining the
therapeutic effects of PCOs have relied on the use of Pycnogenol.
It's more expensive than grape seed extract, however.
Health Benefits
European doctors prescribe PCO-containing drugs for various
vascular (vessel) disorders that are likely to benefit from
increased blood flow, such as diabetes, leg cramps, varicose veins,
arm and leg numbness or tingling and even impotence. Macular
degeneration and cataracts*-vision-robbers of the elderly*-may also
improve by means of the extract's effects on circulation.
Disorders such as endometriosis, which are affected by the release
of hormone-like substances called prostaglandins, may benefit from
the extract's ability to block the release of this pain- and
inflammation-causing chemical. Grape seed extract effectively
penetrates cell membranes throughout the body with its antioxidant
properties. It can even cross into the brain (traversing the
blood-brain barrier) to protect brain cells from free-radical
damage.
As an ingredient in facial creams, the extract may help maintain
skin elasticity; many European skin creams feature grape seed
extract for this purpose.
Specifically, grape seed extract may help to:
?Prevent heart disease. The risk for heart attack and stroke may be
reduced with this potent antioxidant, which is believed to prevent
the plaque development that can clog arteries. A recent study of *8
smokers indicates that PCOs may function as effectively as aspirin
in keeping blood cells from sticking together and forming blood
clots (called an anticoagulant effect). And the PCOs posed no risk
of the gastrointestinal irritation or bleeding generally associated
with aspirin. Interestingly, another preliminary study using grape
seed oil (which is related to grape seed extract) indicates that
using 2 tablespoons a day to replace other oils in cooking could
increase HDL ("good") cholesterol by *4% and reduce triglycerides
by *5% in just four weeks.
?Minimize fibromylagia damage. Fibromyalgia is an elusive disorder
associated with chronic muscle pain and stiffness. The antioxidant
power of grape seed extract can help by protecting besieged muscle
cells from damage.
?Deter cancer. The antioxidants in grape seed extract work hard at
helping to control cellular damage, routinely hunting down and
neutralizing mutations within the genetic material of cells that
could lead to tumor formation. The development and progression of
cancers of the lung, breast, stomach, prostate, colon, skin and
other body parts may be stalled as a result.
?Fight skin diseases such as psoriasis and eczema. Certain
components within the skin*-collagen, elastin and hyaluronic
acid*-participate in keeping it healthy. PCOs help keep these
substances in good shape by blocking enzymes that might disrupt
their chemical structure. In this way, grape seed extract may be
useful in treating inflammatory skin conditions such as psoriasis.
Its flavonoids also inhibit allergic reactions that can generate
such skin problems as eczema.
?Slow progression of macular degeneration and cataracts. Grape seed
extract improves blood flow in the eye's tiny vessels, where
certain eye diseases can cause blockages and impairments that
result in vision damage. Cataracts are an example. The extract's
antioxidant powers are of particular value in warding off the
free-radical damage so frequently cited as the leading cause of
macular degeneration.
?Lessen allergy symptoms. As a natural antihistamine, grape seed
extract may help to control the sneezing, congestion and other
hallmarks of an allergic reaction. The extract also inhibits the
release of chemicals called prostaglandins that can generate
inflammation during an allergic response. Working in concert, the
nutrient's antihistamine and anti-inflammatory actions can help to
keep at bay such allergic responses as hives, hay fever and
eczema.
?Ease eye strain. People who stare at computer monitors for
extended periods may benefit from taking grape seed extract. The
findings of one recent study indicate that **0 mg, taken daily,
will ease eyestrain and enhance perception of contrast after just
*0 days.
Note: Grape seed extract has also been found to be useful for a
number of other disorders. For information on these additional
ailments, see our Dosage Recommendations Chart for Grape Seed
Extract.
Forms
tablet
liquid
capsule
Dosage Information
Special tip:
*-Always use a grape seed extract preparation that's standardized
to contain *2% to *5% PCOs.
?For general antioxidant and cancer-prevention use: Take **0 mg
each morning. Smokers should take **0 mg three times a day.
?For the majority of other ailments: Take **0 mg three times a
day.
Be sure to check out our Dosage Recommendations Chart for Grape
Seed Extract, which lists therapeutic dosages for specific ailments
at a glance.
Guidelines for Use
Take grape seed extract at any time of day, but be consistent
about when you take it, especially if you are using it to fight a
particular condition.
To realize a consistent benefit from grape seed extract, you
need to take it regularly. Only about *0% of its PCOs remain in
your body *4 hours after taking the supplement.
General Interaction
There are no known drug or nutrient interactions associated
with the use of grape seed extract.
Possible Side Effects
?No adverse effects or toxic reactions have been reported.
Cautions
Based on the limited research that has been done on grape
seed extract so far, it appears to be very safe. Ailments
Dosage
Aging **0 mg once a day
Cancer Prevention **0 mg each morning; may be partially covered by
daily antioxidant complex
Cataracts **0 mg once a day
Eczema **0 mg twice a day; may be partially covered by your daily
antioxidant complex
Hair Problems **0 mg twice a day; may be partially covered by
antioxidant complex
Heart Disease Prevention **0 mg twice a day; may be partially
covered by your daily antioxidant complex
Lupus **0 mg twice a day
Macular Degeneration **0 mg twice a day
Psoriasis **0 mg twice a day
بلد: |
China |
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