What is the difference between hair tattoo and hair pigmentation? Which one is the most preferable and why? A hair tattoo involves tattooing tiny dots on the scalp to mimic the look of hair follicles. This technique creates the illusion of a closely shaved head or adds density to thinning areas by depositing pigment into the skin using fine needles. Visit : https://articlewaves.com/what-is-the-difference-between-hair-tattoo-and-hair-pigmentation-which-one-is-the-most-preferable-and-why/