Aw, I'm so sorry to hear about this! Sounds like he has a modified silk coat since you say his face is silky but the rest of his coat is different. Have you tried using Cowboy Magic? It might help him, I think purecanine.com has it.
I bought it for Jewelina and Jaden thinking it would add shine but it only made them greasy

They don't ever get matts or knots in their hair so I have zero use for it. If you want me to pour what's left of it into a smaller bottle and send it to you I'd be happy to. And tell Teddy not to worry that he always looks good for the ladies, Jewelina said so!