No, hair will not grow as a result of getting a hair tattoo or scalp micropigmentation (SMP). This procedure does not stimulate hair growth or prevent hair loss. Instead, it is purely cosmetic, creating the appearance of hair follicles by tattooing tiny dots of pigment onto the scalp. It is designed to mimic the look of a natural, closely shaved head and can enhance the appearance of hair density, but it does not affect hair follicles or alter hair growth in any way.