Herb Pharm Willow Bark Liquid Herbal Extract Description. Liquid Herbal Extract. Salix Lucida. Spring-Harvested Bark. We prepare our Willow extract from the bark of Salix lucida trees which have been Custom Wildcrafted in their natural wild habitat. To assure optimal extraction of Willows bioactive compounds the bark is hand-harvested in the early spring is carefully shade-dried and cleaned of excess wood and is then thoroughly extracted. Our Willow bark is never fumigated or irradiated. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose treat cure or prevent any disease. Shake well before using. Two to fivve times per day take 30 to 40 drops in a little water. Ingredients: Distilled water certified organic grain alcohol vegetable glycerine and willow extractives.