Hyperforin is a powerful inducer of the CYP3A4 enzyme. This means it can significantly lower the effectiveness of many medications, including birth control pills, blood thinners (Warfarin), and immunosuppressants .

You can find standardized St. John's Wort with hyperforin at major health retailers like The Vitamin Shoppe or GNC . 3. Essential Buying Precautions

Use can increase photosensitivity , making your skin more sensitive to sunlight and prone to burns.

Standard herbal extracts often only guarantee a certain percentage of hypericin . To ensure you are getting hyperforin, look for products explicitly standardized to Hyperforin .