Semi-permanent eyebrow tattooing is a procedure that uses a needle to pierce vegetable pigment dye into the eyebrow area in the direction of the growth of the eyebrow hair, allowing the pigment to penetrate into the dermis to achieve a dyed effect. However, the effect of semi-permanent eyebrow tattooing is not permanent and usually lasts for 2-3 years, after which the color begins to fade slowly. After fading, there is only a faint trace of the color, which is quite different from before. The main reason for this phenomenon is that semi-permanent eyebrow tattoos are not deeply needled and only stain the superficial layer of the skin. With the body’s metabolism and the shedding of epidermal cells, this superficial layer of pigment is metabolized and the color slowly lightens until it fades completely, returning to the original state of the eyebrows. With the semi-permanent eyebrow tattoo technique, healing is relatively quick because the coloring remains only in the superficial epidermis, making it less invasive. It is normal for the eyebrow color to be thicker the day after the tattoo, and the color will fade after 4-5 days. You can also apply topical antibiotic creams or protectants to remove the scabs in about a week. In addition, in order to make the eyebrow tattoo more effective, candidates should also pay attention to the following matters: 1. 3 days after treatment, no local water; 2. 1 week after treatment, avoid sauna or beauty care; 3. Do not eat spicy, stimulating, greasy food.