My hair is 4a/b (no coloring or rinse) and i just accidentally purchased and used Revlon Realistic (Mild) --i normally use Regular. If you do decide to use Revlon Mild, please be careful. my hair is 4a/b and it relaxed my hair VERY quickly. from start of application to rinsing out i took 15-17minutes. Your hair is 4a/3c AND bleached so i would not even think about going over about 7-10 minutes... seriously. I dont know what it is, but the Revlon (Lye) mild is strong. -- jainygirl