I had thick calluses on my heel and cracks over my entire foot sole. I tried pedicure for the first time and it dint work/help much. I saw this foot mask and thought would give it a try. I let it soak for more than the mentioned time - for 2 hours. And Nothing happened, till the 7th day when all the thick skin started peeling off on its own. I took a warm shower and it helped peel off faster. Seriously ….the change was amazinnnggg…!!! Literally, 90% of the thick CRACKED skin was gone. Now I maintain my foot health by moisturising it everyday. This product has helped me immensely for a fresh start…. I will always keep one of this on hand. Thank you Face shop…..!