my callouses laughed at this [SEP] my heels have never met a callus remover that worked unless were talking about the blade remover shaver no acid remover has done much even the baby feet peels only halfway work and take weeks to finish i had high hopes after reading the reviews but after treatments i still have thick calluseslast time i used the remover right after my shower i applied it with a fan brush wrapped my feet in plastic bags added socks and waited minutes then i used a callus rasp as i rinsed my feet and followed by the foot scrub after all that i added cream and socks for extra moisturization nothing i cannot tell a difference