I had the same issue like 4 weeks ago, because i ran out of john frieda relax texture correcting serum which was the best detangler. I didn't even have to comb thru, until i rinsed out the conditioner and applied it. I want to try his serum for thick hair instead of the 'relax' serum since it has been discontinued. anyways, someone suggested the pantene detangling spray and i bought it and i like it alot. it works. i also use mizani botanifying shampoo and i really can't explain it but it turns my roots into wavepatterns so then it becomes very easy to comb. also remember to comb out your hair after your conditioner has set in it for a few mins. I used to comb out my hair only once, and that was after i rinsed out the conditioner and applied a light leave-in...It worked when i used the JF serum, but since i don't have it anymore, this is the issue that was causing all of the tangling.
I stretched my relaxer for the first time to 10 1/2weeks and i got a lil over 1 1/4 inches of newgrowth....and so can you!!!!!