Please be advised that Nature’s Sunshine Pau D’Arco (Stock #504-2 with a Hebrew label) bears an unauthorized Star-K symbol. It is a gelatin capsule product and is not Kosher. The product was distributed in Israel.
From The KIB: Pesach News – Avocado Oil and Spray
All Pure Virgin Avocado Oil & Spray (without additives), are fine for use on Pesach without a special Pesach designation on the label.