Cannabidiolic acid (CBD-A) is a type of compound found in cannabis called a cannabinoid. CBD is also a cannabinoid, but you won’t find much CBD if you look at a fresh cannabis plant. Instead, you would see abundant amounts of CBDA. CBDA is a compound that eventually becomes CBD. While CBD comes from grown and cured cannabis plants, CBDA occurs in plants that are still growing. CBDA is what’s known as an acid precursor of CBD and only comes about when raw cannabis containing CBDA is heated, causing what’s known as decarboxylation.