I feel it might help with tangled hair however I usually don't have issues with that so it's hard to say. I comb my hair under the shower (after conditioning it first; try to leave conditioner for at least 5 min before rising) with wide tooth comb and after that I use Tangle Teezer. For me it's the best way to fight with tangled hair. I was more interested in the 'without frizz" part since I really struggle with that. I've read many good reviews and I decided to give it a try, unfortunetly it didn't work for me that great. I don't see any difference, it did nothing about the frizz. It did make my hair a bit healthier however it's not the nourishment my hair need. I have curly hair with tendency to get really dry and this product doesn't nourish or moisture the way I would expected.
I will finish the bottle I have but I definitely won't buy it again.