What the best hair relaxer that wouldnt make hair puffy?

I'm part african american and i use organic olive oil hair relaxer, it really good but after i use it. My hair goes back to being puffy so i wanted to know how to make my hair stay straight and relax without the puffy-nest.What the best hair relaxer that wouldnt make hair puffy?
la looks








.What the best hair relaxer that wouldnt make hair puffy?
use aussie sydney smooth it works real good. :-)