St. John’s Wort

St. John's wort is the flowering aerial part of Hypericum perforatum L., a perennial herb native to Europe and western Asia and naturalised widely elsewhere. Nustras supplies it as an extract powder standardised to total hypericins; the herb's characteristic constituents are the naphthodianthrones hypericin and pseudohypericin, hyperforin and flavonoids such as rutin.

The extract is formulated into botanical and herbal supplements in capsule, tablet and powder form, into multi-herb blends and premixes, and into herbal teas and cosmetic preparations where a standardised St. John's wort extract is required.

The material is an extract powder prepared from the flowering tops and standardised to 0.3 % hypericins by UV spectrophotometry. Identity is confirmed by thin-layer chromatography, and heavy-metal and microbial limits are supplied to specification and confirmed on each lot's certificate of analysis.

Nustras supplies St. John's wort extract in bulk commercial quantities, in food-grade bags and fibre drums, to manufacturers and formulators internationally, with a certificate of analysis, specification sheet and country-of-origin documentation on every lot. Hypericum perforatum is a regulated botanical whose status differs between markets, some classifying it as a herbal medicine; buyers confirm the permitted plant part, hypericin level, product category and claim for their application. Contact us for grade, pricing per kilogram and lead time.