Scalp micropigmentation, or hair tattoo, is a non-surgical, superficial cosmetic tattoo that gives the illusion of a close buzz cut hairstyle on a bald head or density to a thinning crown.

Scalp micropigmentation usually retains its appearance for four years or longer. The pigments used in scalp micropigmentation are permanent cosmetic pigments. They are not the same as tattoo ink, so they resist fading or colour change.