One month versus four months of new growth on a sew-in with a bead base. Your natural hair keeps growing underneath the beads. That space between the extension row and your scalp is normal, but after four months, tension builds and tangling starts. A sew-in needs a reposition every six to eight weeks, not twelve or sixteen. This is how you keep your real hair healthy long term. And here is something I want to clear up because I get this question all the time. Clients always ask me, do 駁髮 damage your hair. The truth is, damage is not about the method. It is about how well you maintain it. If you let any install sit for four months without a touch up, without brushing, without proper care, even your natural hair left completely alone with no 駁髮 would start matting and breaking if you did not brush it for four months. You know the answer. The method is not the problem. Letting it go too long between appointments is.