If your hair is lacking in protein it may take a few treatments to see a difference. I did one a couple of days ago, and I think I should have done a DT after because my hair was a little rough. My hair likes protein in products, but protein treatments need some extra moisture. Maybe next time I'll add conditioner to the mix.
Former longhair, now CG, living in N. California where the fog meets the wind
3a/b, fine, normal porosity/elasticity, high density
Conditioner wash and style. That's it!