An extract, usually herbal, and usually made with a mixture of water and alcohol, although there were official tinctures that also used acetic acid, chloroform and glycerin. Only a few tinctures are still official in the U.S., including Tincture of Arnica and Compound Tincture of Benzoin. In herb commerce, the term should really only be appropriate when the extract at least RESEMBLES the formerly official methods for making plant extracts. The strength should be listed, usually as a ratio (1:5 being the most common) or a percentage (20%...the same strength as 1:5). Green Tinctures of fresh plants, are usually appropriate when defined as 1:2 or 50%. The alcohol percentage should be given, and, if below 45%, is made incorrectly. Dry plant tinctures, the norm, are official when percolated (usually), although maceration was and is allowed as an alternative method.