St. John's wort also contains various flavonoids and proanthocyanidin polymers. As an antidepressant, St. John's wort has been shown to inhibit an enzyme (catechol-O-methyltransferase) which degrades certain neurotransmitters such as dopamine. St. John's Wort Extract has also been shown to inhibit serotonin reuptake in the brain, and to
reduce expression of interleukin6 and gammaamino butyric acid (GABA) uptake. Each of these actions can contribute to alleviating depression by slowing the recycling of neurotransmitters needed for maintaining emotional balance.
As an anti-viral agent, St. John's wort has been reputed to inhibit replication of several viruses, including the Herpes simplex, HIV, and the virus that causes mononucleosis.

Application of St.John's Wort Extract:

1) Applied in food field, often used as additives, with distinct fragrance smell, it can promote digestion and increase appetite; 
2) Applied in daily necessities field, aslo added into a large amount of oral cleaning products, such as dentifrices, mouthwash and tooth powder; 
3) Applied in pharmaceutical field, because of the function of inhibition and paralysis to sensory nerve endings, it can be used as counter irritant.

FunctionofSt.John's Wort Extract:

1.St John's wort is widely known as an herbal treatment for depression.  It is proposed that the mechanism of action of St. John's wort is due to the inhibition of reuptake of certain neurotransmitters.
2.St. John's wort is also being studied for anxiety because, in some studies on depression, people taking St. John's wort also reported an improvement in anxiety. 
3.St. John’s wort has also been suggested as a possible treatment for OCD because the same medications (antidepressants) are often used for OCD, and because of promising results from a preliminary study. A later study on St. John's wort, however, didn’t find it more effective than a placebo for OCD.
4. Some alternative practitioners recommend St. John's wort for ear pain due to an ear infection (otitis media).  
5.St. John's wort is being explored for smoking cessation. Although promising, well-designed studies are needed.

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4. OEM/ODM Available.
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Q6: How to confirm the Product Quality before placing orders?
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