Herb Pharm Sassafras Liquid Herbal Extract Description. Liquid Herbal Extract. Sassafras Officinale. Rossed Root Bark. For External Use. We prepare our Sassafras extract from the root bark of Sassafras officinale trees which are Custom Wildcrafted in their wild native habitat. To assure optimal extraction of Sassafras bioactive compounds the root bark is hand-harvested only in the autumn or early spring is carefully shade-dried and rossed free of adhering wood and is then thoroughly extracted. Our Sassafras 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. Ingredients: certified organic grain alcohol distilled water vegetable glycerine and sassafras extractives. Warnings For external use.