i have had two chem peel session at 2 weeks intervals, i noticed my skin looked fairer in initial but started turning dark when i started going college. is it becuz of improper application of sunscreen or becuz of anti acne face wash that i use? i apply sunscreen while i am way back home and by that time i have already spent 5-10 minutes under sun. And i dont apply sc on cloudy days?is my application of sunscreen improper? what's the proper way? how about the facewash? which one should i use?