Ever wondered just what makes our hair curly? Why our hair springs out in twists while others’ flow in waves or straightness? Yes, genes are a big part of our hair-story, but I often questioned just what is in its biochemical make-up to make it act the way it does. Now that I’m in the natural-hair world, I decided that to better take care of my curls I need to get to the root of its structure. So time for me to geek out, don a lab coat and delve beneath the surface of our kinks and curls.