"[0025] As used herein, the term "keratin fiber" includes hair of the scalp, eyelashes, eyebrows, facial hair, and body hair such as hair of the arms, legs, etc

"[0025] As used herein, the term "keratin fiber" includes hair of the scalp, eyelashes, eyebrows, facial hair, and body hair such as hair of the arms, legs, etc. Keratin fibers are not limited to humans and also include any keratin fibers from a mammal, such as, for example, pet hair and mammalian fur." I see. They've patented the waterproof dog. ;)