One thing that most people do not realize is that most of the human hair wigs donated is never made into wigs but is used for other purposes like soaking up oil in an oil spill. Hair that is acceptable quality must have never been chemically treated, and be at least three inches longer than the finished wig. It also must be of a texture that can hold a knot. many hairs will tend to untie if they are ventilated into a wig. Locks of Love has been accused of selling the good hair it receives and substituting poor quality hair to give to kids. I can attest to that as I have worked with their wigs and could do very little to make them look good because they were such poor quality.
There are two ways acceptable hair can be made into a human hair wigs. The first is called wefted. The hair is sewn into a long band with string, then these wefts are lined up and sewn in place in the form of the head. The second way is called a lace wig and the hairs are ventilated or tied in small groups of 1-4 hairs onto a net that has been designed to take the shape of the head.
Both methods can break the hair or the hair can untie and cause shedding. very good quality human hair wigs have the hair all aligned in the same direction that it came from the head and this helps to prevent tangling. The term for this is called remy, however today that term has been misused and many wigs that claim they are remy are simply coated with silicone to make it look like good quality. Unfortunately the silicone washes off the hair and you are left with a mess that tangles easily.
Since extensions are so popular today there is a shortage of good quality hair and most manufacturers can not even buy it. The human hair wigs market is tightly controlled and the good hair usually goes to Jewish companies that make wigs for the very rich. It used to be available to the entertainment industry but this is no longer true. So, buying a human hair wig for less than thousands of dollars is a scam. There are a few companies that harvest their own virgin hair like Freedom wigs, but these wigs are only used by people with total hair loss or those that shave their heads and they too cost several thousand dollars.
It always makes me sad when I see ads for wigs at the $300.00 range that claim to have virgin human hair wigs or be of good quality. The general public does not know good quality from poor quality. However, even hair of poor quality can look good and if the buyer is happy with the product, then it is ok to buy it. I just wish there was more truth and less marketing baloney.