I just message the shampoo in the scalp and if it flows down the rest of my hair as I'm washing or rinsing, that's ok. I know what a pain the layers are. What I did, and still do, is put it on the ends after
shampooing. After the hair dries, you might find other dry areas you missed and you can put a little more on. I'll keep using the extra conditioner on my ends to keep them soft and healthy looking. It's a lot easier now that it's all one length again.
It takes a while to see the improvement but the extra effor is so
No more layered cuts for me.