Effective detergent/cleaner for removal of dried blood and protein soils from skin and scalp Effective for cleaning surgical instruments and surgical apparatus before sterilization Tincture of green soap 1 Pint size the number one tattoo cleanser in the industry. Cosco green soap is excellent when diluted with water for skin prep and also for stencil application. It is the undisputed champion when it comes to general cleanup in your clean room.