Nothing Pain Relieving Foam Soap contains 4% max lidocaine and is specifically formulated to numb and disinfect your skin during the tattoo process. It is enriched with soothing aloe vera and is perfect for those with sensitive skin. This all natural antibacterial and antimicrobial soap is not harsh and it prevents the onset of excessive drying and scabbing. Nothing is impossible to tattoo with H2Ocean Nothing products. The sea salt and aloe start the healing process while you tattoo!