After the factory workers sew the hair pieces in to bundles, there might be some short pieces that are not attached to the weft, so when you first comb it or wash it, it will fall out. That’s not shedding, comb them out and it will be fine.
The wefts are double drawn machine weft to prevent possible shedding, if you have to cut the weft to adjust the hair volume for your install, please make sure seal the edges of the wefts so it won’t shed.
Furthermore, never wash or comb the human hair wigs with great force, which requires more your patience to take care of, or else it will take off.
Human hair wigs get knotted easily when combing. If there is a little knot on the hair, please separate the knot carefully. Don’t use too much strength to separate it.