How tattoos are maintained by macrophages could be key to improving their removal
Researchers in France have discovered that, though a tattoo may be forever, the skin cells that carry the tattoo pigment are not. Instead, the researchers say, the cells can pass on the pigment to new cells when they die. The study suggests ways to improve the ability of laser surgery to remove unwanted tattoos. More
Baranska A. et al., J Exp Med., 2018
