Despite the pain, he is endowed with regenerative capabilities due to the same mutation that caused the neural cells to differentiate all over his body allowing him to completely regenerate whole body parts if necessary. The biotechnology armor he wears is constructed out of genetically modified bacteria that are able to group together to dissipate kinetic energy when impacted upon, allowing the wearer to withstand tremendous blows and is able to dissolve any metal that can be oxidized. The two disadvantages of this biotech armor, which made it unmarketable, are that it can be easily neutralized by being washed off with antibacterial soap and water and, more importantly, that it will dissolve a normal human's skin after a few hours if not thoroughly washed off. This "side effect" worked well with Tony's regenerative capabilities, seeing as how his skin would regenerate as fast as the armor would eat it making it a perfect fit. Another secondary problem was that, initially, the liquid armor turned his skin a bright blue hue making socialization and the idea of going to a normal school more difficult.