NOW Foods  St. John's Wort 300mg (100 caps)

NOW Foods: St. John's Wort 300mg (100 caps)

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$10.95 45% OFF
St. John's Wort 300mg (100 caps)
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  • NOW St. John's Wort 300mg

    Standardized Extract!

    • 0.3% Hypericin
    • Vegetarian Formula

    Mood imbalances, even in the most modest sense, can keep us from functioning at our best. St. John's Wort, a perennial extract that blooms from June to September has been shown to help support a positive, balanced mood state.

    As the subject of many studies, St. John’s Wort has been shown to help balance mood, promote feelings of calmness, and even support healthy sleeping patterns. Hypericin, an active pigment in St. John’s Wort, has been linked to its ability to assist the brain in manufacturing serotonin. As a result, many loyal users find it beneficial in providing the balance needed to maintain a positive mood naturally, and without harsh side effects.

    Suggested Use

    As a dietary supplement, take 1 capsule 3 times daily, preferably with meals.

    Free of:
    sugar, salt, soy, yeast, wheat, corn, milk, gluten or preservatives.

    Other Ingredients:
    White rice powder, magnesium stearate, silica.

    Warnings:
    Do not exceed 3 capsules daily, unless directed by a health care professional.  Larger amounts may contribute to photosensitizing reactions (skin reddening) in the presence of strong sunlight or tanning beds.  If you are pregnant/lactating, or are taking any MAO-inhibitors or other anti-depressant medications, consult your health care professional prior to use.

    More Information on This product

    By Joseph Zhou, Ph.D., Director of Lab Methods, NOW Foods

    St. Johns Wort (SJW) is a perennial plant that has oval-shaped leaves and golden-yellow flowers. This plant has been used as an herbal remedy for many centuries. It is used to help heal wounds, as a balm for burns, a treatment of neuralgic conditions such as back pain, and also as a diuretic.. A renewed interest in SJW occurred during the past decade, and it is now a component of numerous herbal preparations for the treatment of anxiety and depression.

    Let's look at the chemistry behind SJW. The anthraquinone derivatives hypericin and pseudohypericin are thought to be the two agents responsible for the psychoactive effects of this herb. In addition, a plethora of flavonoids with awful sounding names such as kaempferol, quercetin, quercitrin, isoquercitrin, amentoflavone, luteolin, myricetin, hyperin, hyperoside, and rutin, as well as hyperforin and adhyperforin are also present.

    I am responsible for analytical chemistry at NOW Foods, and it is my job to ensure product quality by developing the right methods to analyze our products. So I would like to tell you more about the science behind the methods we use to ensure the quality of our products, and especially about SJW.

    As with many natural products, there are a variety of analytical methods that can be used. We first look to official methods. DAC 86 is the older German Pharmaceutical Codex method, designed primarily to detect total hypericins in dried SJW herb material. A different method is DAC 90, which uses an analytical column to separate hypericin and pseudohypericin from the herbal material, and precisely quantify each of them.

    The Association of Official Analytical Chemists (AOAC) International is currently in the process to establish an official method for SJW raw material and finished products. The method in consideration can analyze nine ingredients in SJW samples simultaneously. They are hypericin, pseudohypericin, hyperforin, rutin, quercetin, quercitrin, isoquercitrin, hyperoside, and I3,II8-biapigenin.

    In order to make sure that we use the best methods available, we have adapted the DAC 90 HPLC method especially for our products, and now we are working on the AOAC method for the analysis of our SJW products. In this way, we work to continually ensure the quality of our products by using the most up-to-date methods available.

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