Not sure what kind of protein you mean. I read somewhere on here about Suave conditioner being protein rich, also the idea of my hair having "low porosity" (floats on top of water)- which helped me approach my dried out hair. I steamed in the bubble bath, soaked my hair in Suave, didn't rinse, and used oil (olive oil, argon oil) as a top coat sealer. Slept in it overnight. It worked pretty well!