At the salon, I once got a clear cellophane by Sebastian (I think) which was not damaging but added shine and enhanced the hair's natural color. Also, have you tried using hair gloss? It is a non-greasy, clear serum used to impart shine to hair after styling. About every product line has one. HTH. I actually have pretty nice shine when I airdry my hair in a ponytail and put a little coconut oil on after it dries. In fact, my hair is at its shiniest since I started airdrying. Go figure. It was so dull when I was blowdrying.