Following is a transcript of the video. Travis Hunter: Scalp camouflage is basically creating the illusion of density by adding thousands of dots of little pigments to the scalp, reducing the ...

The ink flows effortlessly through hair to reach the scalp, where it dries into a thin, flexible film. Once in place, the tattoo acts as a sensor, picking up brain signals with precision.

EEG electrode glue, on the other hand, is more difficult to get out of hair. The ink formula can also be modified to create tattoo lines onto the scalp, meaning that the wires that connect the e ...