Why is my sew in shedding? Lets be clear...ALL extensions will shed some. It is natural to loose a little hair over time. One thing you should ask your vendor is if they use a TWO or THREE head machine? Three head machines add extra stitching to help prevent shedding. Quality companies only use healthy hair. Many companies (from certain countries) use reject hair and you end up damaged hair that sheds terribly. Make sure your hair is DOUBLE not SINGLE wefted.