Flexitol Hard Skin and Callus Balm immediately softens hard skin and callus.Gently exfoliates callused and scaly skin.It’s highly effective. Promotes healthy skin growth.Contains 22% Urea and a blend of Alpha Hydroxy Acids which deeply penetrate and gently exfoliate hard or callused skin."Visible Results in 3 days. Recommended for adults and children 12+ years old. Suitable for diabetics."