Always, yes.
There are not a lot of materials made from cow's hair. The hair can be used in making things such as shoes or other clothing items, but it is not very valuable or needed.
Hair
cow fur or the hair on a cow's body
Leather of a cow with hair is called hair-on. The names for the leather generally relates to the process the leather is tanned.
Hair
short hair
The hide of a cow is its skin and hair. Cowhide is often used to make fashionable products such as shoes and leather jackets.
A Holstein cow is a dairy cow with a large udder and has a thin hair coat that is black and white.
Yes
The breed characteristic and the pigment in the hair determines the hair colour.
yes, traces of cow urine are used in most popular shampoos. It contains Trinitro-5-Tert-Butyl-M-Xylene which generally adds shine to hair.