Oh my goodness! That's a heck of a mark-up. That product is made for Petedge. You can get a near wholesale price for it here:
http://www.petedge.com/shopping/brow...eyword=glocoat
Petedge sells the 16oz size for $5.99 and suggested retail price is only $12.99. I may be wrong, but it sounds like the product is a made similar to Laser sheen, a product we use on horses. Check the ingrediants. Does it contain silicone?