The common name “St John’s wort” comes from its traditional flowering and harvesting on St John’s Day, 24 June. Perforate St John’s wort is a herbaceous perennial plant with creeping rhizomes. Its stems are erect, branched in the upper section, and can grow to 1 m high. It has opposite, stalk-less, narrow, oblong leaves that are 1–2 cm long, yellow-green in color, with scattered translucent dots of glandular tissue. The flowers are colored bright yellow with conspicuous black dots. The herb flowers between late spring and early to mid-summer. Hypericum perforatum is native to parts of Europe and Asia but has spread worldwide as a cosmopolitan invasive weed, including to temperate regions of India, China, Canada, Africa, and the United States. Except for Hypericin, this herb also contains: Tannins:Hyperforin – unstable compound, that is degraded almost immediately after being synthesized in the plant. Tannins are used for gastrointestinal disorders, intestinal infections, and as anti-inflammatory agents. Also, there is evidence that they strengthen the heart.* Flavonoids: Quercetin, quercitrin. The flavonoids from St. John’s wort are used for cancer prevention; protect the organism against onset and development of cancer, by influencing serotonin levels (the hormone of happiness). They affect the overall hormonal balance.*
Definition: Product from above-the-earth parts of Hypericum perforatum (St John’s wort).
Characteristics: Dark brown amorphous powder, practically insoluble in water, very slightly soluble in 50% ethanol.
Testing for purity:
Loss on drying,%, max: 5.0
Sulphated ash,%, not more than: 10.0
Heavy metals,%, not more than: 0.001
Content of active substances:
Content Hypericin, %, of dry substance, not less than: 0.3
Control:The qualitative indices of the product are controlled in accordance with company documentation, where are included assay methods and their validity concerning linearity and repetition.
Storage: At a temperature of 20 – 25oC.
Shelf life:3 (three) years from the date of production.
Application: Extracts of this botanical are used in cases of mild to moderate depression, nervous conditions, anxiety, insomnia, irritability and tiredness.