Blue soap is used before, during and after a tattoo procedure. It is used for avoiding stinging or skin irritation. Excellent when diluted with water, usage as same as Green soap, great for cleaning. Blue soap is excellent when diluted with water for skin prep and also for stencil application Blue soap can prevent inflammation and cleaning wounds All Natural and Vegan: Effective detergent/cleanser for removal of dried blood and protein soils from skin and scalp. Our Blue Soap is all natural, vegan, and provides soothing relief after/during strenuous sessions. Safe to use on sensitive skin to prep area for tattoo or piercing. Safely remove dried blood, dead skin, and other impurities without drying out your skin. Better than Green Soap! Our Blue Soap is trusted by artists around the world and the preferred skin cleanser for tattoos and piercings.