BlueDevil Engine sealant?

Anybody ever heard of BlueDevel Engine sealant? Says it will fix head gasket seals.

" Has the remarkable ability to repair and seal leaks in freeze plugs, leaking radiators and heater cores, cracked or warped heads, even a blown head gasket."

Anyway my GF has an oil leak and its cuz of the head gasket...was wondering if it is worth the $60 for the bottle to see if it would fix it.


here is the site:

http://gouniversalproducts.com/product_overview.html

Never used it but I used some crap on my radiator a mid-summer because I had messed up hoses. Long story short, I got a good deal on a new radiator.