Once the eyebrows are trimmed they need to grow back into new eyebrows, and it takes about 150 days for the new eyebrows to fully grow, which is the average growth period of eyebrows, but if the hair follicles are plucked out when the eyebrows are trimmed, then the eyebrows will not grow back. The growth rate of eyebrows is related to nutrition, so pay attention to strengthening nutritional support, you can eat more protein-rich meat, beans, milk, etc. You can also eat more vitamin-rich vegetables and fruits, as well as nuts, black sesame and other foods rich in trace elements. You can also often do local massage, which can promote local blood circulation, and also pay attention to maintain a relaxed mood, which helps maintain stable hormone levels in the body and promote the growth of eyebrows.