I completed my 2 year natural anniversary a few months ago. I've been taking my time researching researching Keratin treatments. My goal is to gently loosen my curl pattern to help with SSKs and to make blow drying easier. (FYI, I'm 4b with fine strands), My two finalists are the Chi Enviro and Uncurly. Has anyone tried both and can give a comparison? I'm still about six months away from getting this. I'm also open to other brand suggesttions that are not on my radar. Thanks!