Scalp Micropigmentation (SMP) is a type of hair restoration treatment for those having experienced hair loss. This modern solution to hair loss, suitable for both men and women, replicates hair follicles by inserting small deposits of pigment on the scalp, offering the result of either a shaven look or a fuller head of hair. Other commonly referred to names for scalp micropigmentation include  SMP, hair tattoo, medical tattoo, and scalp tattoo.