Creosote that creosote contained a mixture of creosol and guaiacol. Later investigations by Gorup-Besanez, A.E. Hoffmann, and Siegfried Marasse showed that wood-tar creosote also contained phenols, giving it a feature in common with coal-tar creosote. Historically, coal-tar creosote has been distinguished from what was thought of as creosote proper—the original substance of Reichenbach's discovery—and it has been referred to specifically as "creosote oil". But, because creosote from coal-tar and wood-tar are obtained from a similar process and have some common uses, they have also been placed in the same class of substances, with the terms "creosote" or "creosote oil" referring to
Wright's Coal Tar Soap brand, Simple Health and Beauty Ltd based in Solihull in the UK and is called Wright's Traditional Soap. Simple Health and Beauty is part of the consumer goods company Unilever UK Ltd European Union directives on cosmetics have banned the use of coal tar in non-prescription products, resulting in the removal of coal tar derivatives from the formula and replacement with tea tree oil as the main anti-bacterial ingredient. To cloak this major variance from the original recipe, the new soap has been made to approximate the look and smell of the original product. Wright's Coal Tar Soap <br> Created