Citra- Clean is a remarkable solvent d-Limonene is the foundation of this product. Made from orange peel extracts, d-Limonene has the amazing ability to dissolve grease, grime, oil and tar on contact. By combining d-Limonene with a carefully tested blend of biodegradable detergents and emulsifiers, this product attacks a variety of tasks ranging from degreasing engines to removing adhesives from floors. Naturally derived, environmentally responsible and provides a safe alternative to petroleum distillates and harsh alkaline cleaners.