St. John's Wort extract is standardized to 0.3% dianthrones measured as hypericin.This product provides the researched dose for promoting a positive mood.Serving Size: 1 CapsuleServings Per Container: 90Amount Per ServingOptimized St. John's wort extract standardized to .3% hypericin 300 mgIn a nutritive base of rosemary herb 80 mgspirulina 40 mgRecommended Use: Take 1 capsule two to three times daily with water at mealtimes. Best results are obtained with continuous use.Caution: Limit direct exposure to the sun since skin may become photosensitive. Discontinue use in the event of a rash. This product should not be taken with any antidepressant medications. Do not use in children under the age of two. Avoid prolonged exposure of individual capsules to direct sunlight.