Eyebrow tattooing is a cosmetic procedure that involves applying semi-permanent ink to the skin to enhance or reshape the appearance of eyebrows. This technique is often used to fill in sparse areas, create a more defined shape, or restore eyebrows lost due to conditions like alopecia or over-plucking. The process typically involves a trained technician using a small needle to deposit pigment into the skin. Results can last from one to three years, depending on skin type and aftercare. It is important to choose a qualified professional to ensure safety and achieve the desired look.