Goleshlee Keratin Treatment

Hi Ladies,
I ordered the Goleshlee Keratin Treatment online and have been doing it at home by myself. I get GREAT results! I do have to leave it in for four days which is a bummer because I try to workout everyday but, hey, you gotta do what you gotta do. The treatment usually lasts for about three months.
My question is this:
Though my treatment lasts for three months my roots that grow in are curly. What are you ladies doing to take care of your roots after you've done the keratin?
I have just been repeating the entire process on my hair but that is a bit tedious and if there's something I could do to touch up my roots, I'd like to know.
I don't relax my hair. I wouldn't even know how. I have thick curly hair and lots of it. If you are using a relaxer in between keratin treatments, could you please tell me which one?
I appreciate your responses and helo!!
xxoo