Resveratrol

Resveratrol is a stilbenoid polyphenol found in the skin of grapes, in berries and peanuts, and in high concentration in the root of Polygonum cuspidatum (Japanese knotweed), the usual commercial source. Nustras supplies resveratrol as a powder, predominantly the trans isomer, in botanical-extract and high-purity grades, for dietary supplements, functional foods and cosmetics.

Resveratrol is formulated into capsules, tablets, softgels and gummies, into functional beverages and fortified foods, and into cosmetic serums and creams. Because it is poorly soluble in water, beverage formulators commonly use dispersible or complexed grades.

Resveratrol is an off-white to pale yellow or light brown crystalline powder, depending on purity grade, and is sensitive to light. The CAS number is 501-36-0, the molecular formula C14H12O3 and the molecular weight 228.24. Each lot is standardised to specification, total and trans-resveratrol content are confirmed by HPLC, and heavy-metal and microbial limits are supplied to specification and confirmed on each lot's certificate of analysis.

Nustras supplies resveratrol in bulk commercial quantities, in light-protected sealed packaging and fibre drums, to manufacturers and formulators internationally, with a certificate of analysis, specification sheet and country-of-origin documentation on every lot. Resveratrol is an accepted supplement ingredient in major markets; buyers confirm the permitted source, daily amount and labelling for their application. Contact us for grade, pricing per kilogram and lead time.