Lava is a heavy-duty hand cleaner in soap bar form manufactured by the WD-40 Company. Unlike typical soap bars, Lava contains ground pumice, which gave the soap its name. The soap and pumice combination is intended to scour tar, engine grease, paint, dirt, grime, filth, and similar substances from the skin. The original Lava soap, which was a beige-colored bar, is no longer manufactured.