There are some that claim to work but i have not found any head gasket in a can yet!
Good luck as it is worth a shot at it anyhow. Check around at an auto parts store,and follow instructions on
the product. A good leak repair may cost 30.00 or more and come with a money back warranty.
Some people tell me it works but i cant say. Don't just get the reg. old stop leak though.
Tell the parts person what you want to do.