I used my Turpenoid Natural product -- sparingly at first because of its cost. But I found you really did not need to use a lot at all, unlike its predecessor Turpenoid Low Odor. It was as if my brushes were soaked in conditioner for human hair. They were silky and most if not all of the paint just came off without much effort! This is a fabulous product, for sure. And if you can buy it somewhere with a 40% off coupon, it hurts just a little bit less. Why would any painter use any other product?