Verdant Leaf - Blueberry - 500mg Solventless Rosin Syrup

500mg Verdant Leaf Rosin Syrup | Nano-Technology A tincture is a mixture of an herbal extract and a liquid (usually alcohol or MCT oil) that is administered orally or sublingually via a dropper. Tinctures are generally high in potency and are intended to give consumers a sugar-free, gluten-free, inhalation-free cannabis experience.