Of course!
I bought the Komaza Protein Hair Strengthener. The instructions on the bottle say to clean the hair,
towel dry the hair,
then apply the treatment.
I was trying to figure out the LOGIC of that, so I went a-reading. What I found was that:
Some feel water in the hair at most blocks and at minimum dilutes deep treatments. A deep conditioner is a deep conditioner because it contains ingredients made of particles small enough already to penetrate the hair shaft. That's why the deep conditioner can do "deep." Unless using a DC that is activated by water, water shouldn't be necessary for the DC ingredients to penetrate. Couple that with the facts that water might block or dilute DC ingredients and that the Komaza PHS directions instruct application to dry hair, I've just been deep treating on towel dried hair which is damp. Seems like a happy medium. With the KareCo Tangle Buster detangling brush, it just glides right through my damp hair when saturated with DC.