Disclaimer: Scientific studies are for informational and educational purpose only. We do not claim therapeutic benefits for FrenchGlory isotonic OPC antioxidants


The most popular anti-allergic medicine is  known to be antihistamines, which inhibit inflammations and allergic reactions and suppress their symptoms. But antihistamine drugs are associated with side effects, such as fatigue and lethargy.

Histamines are inflammatory chemicals released by the body when allergic reactions occur. Histamine causes allergic symptoms such as stomach ulcers, hay fever joint dysfunction and even skin disorders.

Scientific studies indicate that grape seed extract contains bioflavonoid natural products and oligomeric proanthocyandins (OPC) that can inhibit the enzymes called histidine decarboxylase, which is responsible for the production of histamine. Grape seed extract phytochemicals are also found to inhibit hyaluronidase, the enzyme that facilitates the release of histamine into body tissues.

Another mechanism for grape seed extract to function as anti-allergic agent is that grape seed extract natural products can strengthen cell membranes of basophils and mast cells, which contain the allergic chemicals, thus preventing over-reaction or hypersensitivity to pollens and food allergens. Grape seed extract may significantly contribute to the well being of allergy suffers, by strengthening the immune system in an optimal conditions, a natural antihistamine without side effects.


† The contents in this website have not been evaluated by the US Food & Drug Administration. Vitaflavan® grape seed extract and FrenchGlory® OPC antioxidants are nutritional supplements, not intended to diagnose, treat, care for or prevent any diseases.




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Grape Seed Extract May Help Allery Sufferers by Reducing the Formation of Histamine and Behaves Like a Natural Antihistamine