Black Haw

Black haw is the dried bark of Viburnum prunifolium, a deciduous shrub native to eastern and central North America, whose root and stem bark are used in herbal preparations. Nustras supplies it as dried cut bark and milled powder, with extract powders on request. The bark contains tannins, coumarins and small amounts of salicin and has an astringent taste.

Black haw is formulated into botanical supplements in capsule, tablet and liquid form, herbal tea blends, tinctures and fluid extracts, and multi-herb formulas for the women's-care category.

Supplied as a brown to reddish-brown bark cut or a fine tan powder with a faint, slightly bitter odour. Botanical identity is confirmed by macroscopic examination and thin-layer chromatography; cut size, moisture and ash are standardised to specification. Heavy-metal, pesticide and microbial limits are supplied to specification and confirmed on each lot's certificate of analysis.

Nustras supplies black haw 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. Black haw bark is an accepted botanical ingredient in major supplement markets; buyers confirm the plant part, preparation and permitted claim for their application. Contact us for grade, pricing per kilogram and lead time.