St. John's Wort 450

Botanicals & Herbs

Brand: Source Naturals

Tablet or PillOn Market
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Net Contents

90 Tablet(s)

Serving Size

1 Tablet(s)

Servings Per Container

Not specified

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

0 21078 01176 7

Product Version

Not specified

Suggested Use

Suggested Use: 1 tablet twice daily. To obtain the best results; use this product for at least 6 weeks.

Market Reference

$2.05 – $94.95· 33 listings
  • Source Naturals St. John's Wort Extract 450

    iHerb4.5(85)
    $23.46
  • Source Naturals St. John's Positive Thoughts Tablets

    The Food Mill4.7(357)
    $14.10
  • Source Naturals St John's Wort Extract

    Chinese Herbs Direct4.5(13)
    $27.82
  • Source Naturals St. John's Positive Thoughts 45 Tablets

    GoSupps.com4.7(357)
    $34.99
  • Source Naturals Diet-Phen Classic 180 Tablets

    PureFormulas.com3.0(2)
    $15.05
  • plnt St. John's Wort

    The Vitamin Shoppe
    $17.99
  • St.john's wort Sale

    Neovitale4.7(3100)
    $31.25
  • Herbal Roots St Johns Wort Capsules

    ravir.de4.5(2)
    $11.20

Where to Buy Locally

Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.

Showing representative supplement & health retailers — search above for stores in your area.

  • S&S Smoothies and Supplements

    4.3 (39)

    Health food store

    38 Merchants Walk Unit c, Blairsville, GA 30512

Research & Studies

  • St. John's wort and depression: efficacy, safety and tolerability-an update

    AR Bilia, S Gallori, FF Vincieri - Life sciences, 2002 - Elsevier

    … John's wort (Hypericum perforatum L.) is a medicinal plant traditionally used, both externally … In the last two decades many studies have proved the efficacy of some St. John's wort …

    2002308 citations
  • St John's wort (Hypericum perforatum L.): a review of its chemistry, pharmacology and clinical properties

    J Barnes, LA Anderson… - Journal of pharmacy and …, 2001 - Wiley Online Library

    … A randomised, double-blind phase I study involving 55 healthy volunteers who received St John’s wort 900 mg daily (containing 0.5% hyperforin), St John’s wort 900 mg daily (…

    20011,219 citations
  • Clinical assessment of CYP2D6‐mediated herb–drug interactions in humans: Effects of milk thistle, black cohosh, goldenseal, kava kava, St. John's wort, and …

    BJ Gurley, A Swain, MA Hubbard… - Molecular nutrition & …, 2008 - Wiley Online Library

    … John's wort, and Echinacea extract supplementation on DURR are shown in Fig. 1 and Table 1… John's wort (Hypericum perforatum) on cytochrome P-450 2D6 and 3A4 activity in healthy …

    2008238 citations
  • Safety of St John's wort (Hypericum perforatum)

    QY Yue, C Bergquist, B Gerdén - The Lancet, 2000 - thelancet.com

    … St John’s wort can lower the plasma concentrations of amitriptyline, thereby providing additional evidence that some St John’s wort … interactions with St John’s wort. Second, because it …

    2000396 citations
  • The effects of St John's wort (Hypericum perforatum) on human cytochrome P450 activity

    Z Wang, JC Gorski, MA Hamman… - Clinical …, 2001 - Wiley Online Library

    … by 57% in 8 healthy volunteers after oral administration of St John’s wort (300 mg 3 times a day… John’s wort (Hypericum perforutum) on cytochrome P-450 2D6 and 3A4 activity in healthy …

    2001514 citations
  • Interaction of St John's wort with conventional drugs: systematic review of clinical trials

    E Mills, VM Montori, P Wu, K Gallicano, M Clarke… - Bmj, 2004 - bmj.com

    … the interaction between St John's wort and the conventional … before and after challenge with St John's wort. We used the … St John's wort (Hypericum perforatum) on cytochrome P-450 …

    2004162 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2017-08-22. DSLD Label ID: 77506. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.