SOURCE NATURALS - St. John's Wort Extract (300 mg) - 240 CapsulesDESCRIPTION Source Naturals ST. JOHN'S WORT EXTRACT is standardized to consistently supply 0. 3% hypericin. A daily intake of St. John's wort, standardized to 2. 7 mg of hypericin, may support a positive outlook and mood. Benefits may be experienced within 4 to 6 weeks of initial use. DETAILS Package Description: 240 Capsules Serving Size: 1 Capsule Number of Servings: 240 FACTS Serving Size: 1 Capsule Servings per Container: 240 Ingredients: Amount