Here's a breakdown:
* Acrylic: A synthetic fiber made from acrylonitrile, a petroleum-based product.
* Nylon: A synthetic fiber created by polymerizing diamines and diacids, often derived from petroleum.
* Polyester: A synthetic fiber produced from the condensation polymerization of a dicarboxylic acid and a dialcohol.
So, while natural hair comes from living sources, synthetic hair is a completely man-made product crafted from chemicals and other industrial materials.