It peels dead, hard skin off your feet. It contains Lactic Acid, Milk Protein, Cucumber Extract, Aloe Extract & Bamboo Ferment Extract. Upon cutting the booties open I was hit with an alcohol & cucumber scent...it wasn't bad, and it went away quickly. Immediately upon placing my feet into the booties there was a cooling sensation. I left them on for an hour and a half and my feet felt really soft afterwards.