Used Part Whole grass Active Ingredient Hypericin Specification Hypericin 0.3% Appearance black-brown fine powder Product NameSt. John’s Wort ExtractLatin NameHypericum perforatum L.SourceAny of various perennial Garcinia herbs, having erect stem, divarication and axillary branchs. The leaves are dense and opposite and they are oblong and linear. The length is about 1-2 cm and the width is about ...