The aloe plant is best known for its healing aloe vera gel, a thin, clear, jellylike substance that can be squeezed or scraped from the inner part of the fleshy leaf. A soothing juice is also made from this gel. Another substance from the same plant, aloe vera latex, is taken from specialized cells along the inner leaf skin (called the pericyclic tubules). The latex is extracted as a liquid, then dried into a yellow powder. Because it's such a potent laxative, the latex is not usually used alone but combined with gentler herbs, such as cascara sagrada. Germany's Commission E approves of using small amounts of aloe vera latex to relieve constipation, but only for short-term use.