I wouldn't say it "often" gets it back to size - a lot would depend on how badly shrunk it is. It can help with mild shrinkage.dialfred said:Aside from keeping it soft, it smoothes wool fibers so you can block to size easier.
And if you've shrunk something by mistake, soaking with conditioner & blocking without rinsing can often get it back to size.
a friend of mine raises alpaca. When I asked her what I should use to wash wool, she looked at me like I was nuts and said, "It's just hair. What do you use to wash hair?" She also said she used the cheap stuff: Suave.MaggieBelize said:Hair conditioner? Why, what does that do for the knitting?