A foot exfoliant plus treatment filled in a pair of wearable mask sheets. Put on the mask as you would your socks. It removes all calluses over time, visibly smoothing your feet within 2 weeks. Lemon, Apple, Grape and other natural botanical extracts remove calluses while Allantoin calms freshly exfoliated skin. Calluses start peeling off in 4 to 14 days after use. Nearly all calluses will be removed further 3 to 5 days depending on the thickness.