Of course it is formal. Otherwise, how could Damai have so many branches across the country and be so big? I don’t think the poster needs to worry about this. Damai was the first to introduce microneedle hair transplantation technology from the United States in 2006. Since then, it has made many iterative upgrades to microneedle hair transplantation technology and obtained more than 10 national patents. At present, the diameter of the microneedle needles used by Damai at home is only 0.6mm-1.0mm, and the planting hole is one-third smaller than traditional hair transplantation. Due to the small wound, 30% more hair can be produced in the same area, and this smaller The wound heals quickly and you can even wash your hair after 24 hours. In addition, because the transplant pen can rotate 360 ??degrees, it can also be planted according to the direction of hair growth. The new hair will be as natural as the original hair?