My two fav. hair products atm are:
Osmo Berber Oil hair treatment with argan oil
and ABBA Herbal Remedy leave-in treatment (running out of that one actually). I've had the ABBA spray for a few months now and I've been using it a lot until I found the OSMO oil (which I also ran out of and then picked up the big 100ml/3.38fl.oz bottle).
I noticed my hair being smoother and healthier and less frizzy.
Two of the top hair products I came across so far!
Also the ABBA spray can be applied to the scalp without looking greasy.