Most Helpful Girl
I am not black, but I have very thick, curly hair. I used to flat iron it every day and for the most part it was still healthy, but it took a long time to notice any growth...yet I still had to color my roots. Flat irons cause breakage on the ends. I started leaving my hair curly about half to two/thirds of the time and my hair has grown a lot in the past 6 months or so. Also, there are vitamins with collagen in them that you can take to help. They make your hair, skin, and nail cells healthier and make them grow faster.