white willow alcohol-free liquid extract, organic white willow (salix alba) dried bark tincture supplement (4 fl oz) secrets of the tribe we prepare our herbal extract from the raw herbs which are sustainably wildcrafted in their natural habitat and/or certified organically grown. to assure thorough extraction of our herbs bioactive compounds, the herb is hand-harvested at its optimal potency, is carefully shade-dried and is then promptly extracted.