Tattoo Goo’s deep cleansing soap is formulated to provide a broad-spectrum germicidal kill while being gentle to the skin. The soap’s specially formulated cleansing agent PCMX-L cleans at a deeper level to prevent bacterial growth and infection by removing more dirt and dead skin cells. This ingredient is non-toxic to human skin, but highly efficient at disrupting pathogenic microbes at a cellular level. Once the cell wall is disrupted the bacteria cannot recombine or multiply and they die. New healthy emerging layers of skin are exposed an important step in tattoo healing and piercing aftercare.
When choosing soap, you want to pick one that is not harsh to the skin. Harsh soaps can dry out the skin causing "special safe harbors" for bacteria and viruses to hide in, making it very difficult to get a good kill on the skin.