What is a camel hair brush made of?

According to Weldon Industries, a camel hair brush contains hair from a pony, ox, goat, squirrel or other animal. A camel hair brush does not use hair from an actual camel.

Camel hair is generally too woolly to be used for brushes and its texture and quality is inconsistent from one batch to the next. The term "camel hair brush" is actually referring to the inventor of this type of brush, Mr. Camel. Low-grade animal hair mixtures are used to produce items like school paintbrushes and inexpensive cosmetic brushes. The high-grade animal hair tips are used in pricier brushes of a higher quality.