A tincture in the most basic sense is a cannabis extract, in which a liquid is infused with cannabis, meant for sublingual consumption(drops under tounge), not vaporization or smoking. The cannabis plant soaks in a base liquid, such as food-grade alcohol, glycerin, or even oil, and after days of steeping, the plant matter is strained out and—voilà! The cannabinoids, terpenes, and other compounds have melded with the base liquid, ready to dose and consume.  Recomended dose is 7-10 drops