The activity of St. John's Wort extract is often attributed to its hypericin content.,Interestingly, new evidence indicates that hypericin may not be solely responsible for the beneficial,properties of St. John's Wort extract.
There are many biologically active components in St. John's Wort, including: naphthodianthrones (hypericin and pseudohypericin), xanthones, phloroglucinols, and various flavonoids, including flavonols and proanthocyanidins. Which of these many other,components may be active in extract preparations and how they may exert their activity is unknown.
Because St. John's Wort may act through the synergistic action of many components, it is important to ensure not just standardized hypericin content of an extract, but also the availability of these other ingredients. Douglas Laboratories' provides 300 mg of St. John's Wort.,
Each Capsule Contains:
St. John's Wort (Hypericum perforatum) 250 mg.
Standardized to 0.3% Hypericin (worldwide)
Other ingredients: Cellulose and vegetable stearate
Adults take 1 capsule twice daily between meals or as directed by physician.
Caution: Do not use if taking any prescription medication (especially anticoagulants, oral contraceptives, antidepressants, anti-seizure medication, or drugs to treat HIV. May cause sun sensitivity. ,