WOW 20% HQ? I've only been using 2%HQ with AHA soap and my skin went from Aaliyah to cassie 20% is EXTREME you can't even buy that in Canada I tried 4% ONCE and woke up with big puffy eyes overlapping and tiny red bleeding bumps. Imagine what 20% would do. Get the AHA soap for the marks over your lips etc, and pills that will work from the inside.