Tinctures are a liquid form that is made by infusing cannabis typically with glycerin or alcohol. They are often used for medicinal purposes, are taken orally, and can contain high levels of both Tetrahydrocannabinol (THC) and Cannabidiol (CBD). Most tinctures are distributed through an eyedropper under the tongue for faster absorption.
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A tincture is typically an extract of plant or animal material dissolved in ethanol (ethyl alcohol). Solvent concentrations of 25–60% are common, but may run as high as 90%. In chemistry, a tincture is a solution that has ethanol as its solvent. In herbal medicine, alcoholic tinctures are made with various ethanol concentrations, which should be at least 20% alcohol for preservation purposes.
Other solvents for producing tinctures include vinegar, glycerol (also called glycerine), diethyl ether and propylene glycol, not all of which can be used for internal consumption. Ethanol has the advantage of being an excellent solvent for both acidic and basic (alkaline) constituents. A tincture using glycerine is called a glycerite. Glycerine is generally a poorer solvent than ethanol. Vinegar, being acidic, is a better solvent for obtaining alkaloids but a poorer solvent for acidic components. For individuals who choose not to ingest alcohol, non-alcoholic extracts offer an alternative for preparations meant to be taken internally.
Low volatility substances such as iodine and mercurochrome can also be turned into tinctures.
English
Etymology
The noun is derived from Late Middle English tincture (“a dye, pigment; a colour, hue, tint; process of colouring or dyeing; medicinal ointment or salve (perhaps one discolouring the skin); use of a medicinal tincture; (alchemy) transmutation of base metals into gold; ability to cause such transmutation; substance supposed to cause such transmutation”) [and other forms], borrowed from Latin tīnctūra (“act of dyeing”) + Middle English -ure (suffix indicating an action or a process and the means or result of that action or process). Tīnctūra is derived from tīnctus (“
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