Spiro is proud to offer quality, American-Made products formulated with premium ingredients that are 100% THC-Free. Because a CBD tincture is concentrated, it’s designed to be taken in small doses. This explains why tinctures often come in a bottle with a built-in dropper which allows users to take small, carefully measured doses. Tinctures can be taken sublingually by applying them underneath the tongue. Scientific research has found that this delivery method may make the CBD more easily and consistently available to the body than other oral alternatives.