Resinous glaze is an alcohol-based solution of various types of food-grade shellac. The shellac is derived from the raw material sticklac, which is a resin scraped from the branches of trees left from when the small insect, Kerria lacca, creates a hard, waterproof cocoon. When used in food and confections, it is also known as confectioner's glaze, pure food glaze, natural glaze, or confectioner's resin. When used on medicines, it is sometimes called pharmaceutical glaze.