11 months post FUE, hair is frizzy and hard to manage. Why?

I'm 11 months post FUE trasnplant and the quality of hair is just dry and curly its not soft as it was before. I notice when its blow dried it becomes soft and easy to manage. What can I put on my hair to have it become soft and easy to manage without damaging it. I'm seeing some results from other people and the hair looks normal how come. I wanted to explore Keratin, or hair rebonding, but am hearing from people saying its bad for the health in the long term.