even at that price, still higher than gold (tho gold is much more useful as a real rather than as a placebo anti-cancer medicinal agent) for the end user. if they want keratin as a medicine, there are a lot handier sources. they could chew their finger nails or hair balls and get more at very little cost..
price i had was copied from a quick google, i wasn't on a quest for greater accuracy.
Medicinal gold uses