Semi-permanent eyebrow tattooing is a method that uses needles to pierce plant pigment dye into the eyebrow area in the direction of the growth of the eyebrow hair, so that the pigment can penetrate into the dermis to achieve the effect of dyeing the eyebrow. However, the effect of semi-permanent eyebrow tattooing is not permanent and usually lasts for 2-3 years before it starts to fade and fade away, with only faint traces of the color fading, which is quite different from before. The main reason for this is that semi-permanent eyebrow tattooing is not deep, but only stains the superficial layer of the skin. As the body metabolizes and the epidermal cells shed, this lighter layer of pigment is metabolized and the color slowly lightens until it fades completely, while returning to the original shape of the eyebrows. The semi-permanent eyebrow tattoo technique is relatively less invasive and faster to heal because the coloring only remains in the superficial epidermis. After taking semi-permanent eyebrow tattooing, the color of eyebrows is thicker on the second day, which is a normal phenomenon, and the color can generally become lighter after 4-5 days; you can also apply some antibiotic cream or protectant externally, and the scab can be removed within a week; no local water within 3 days after treatment, avoid steaming sauna or doing beauty care within a week, to avoid uneven coloring, do not forcibly pick the scab, so that it can fall off smoothly and naturally, please within 1~3 months Please make up the color within 1~3 months to ensure the best result. In addition, pay attention to a light diet, eat more fresh fruits and vegetables, do not eat spicy and stimulating and too greasy food.