My dead straight hair came back as chalk white frizz! Slowly, it got grayer and actually curly (very!) instead of frizz. Then it went mad and turned light brown!! It settled after about two years, with a hint of a wave but can still go a little kinky in humid weather. Be prepared to run with the changes! It’s slightly finer and therefore doesn’t feel quite as thick (but it was extremely thick before). My shed pattern (never knew I had one!) changed about two years into new hair from an abnormally small number of hairs shed daily ( possibly why my hair was so thick) to a normal average. Frequent trims helped control the supercurl and I chose to use organic hair colour. I don’t think hair dyes cause cancer but I felt a bit protective of my poor head! All good since then. Best wishes, go with the flow!