Xerial 50 Extreme Creme PiedsSVR Xerial 50 Extreme Creme Pieds 50ml Feet, hands and elbows. Do not use on children under 3 years of age. Xerial 50 extreme cream feet reduces calluses and stubborn calluses in 7 (1) days. Why choose it? For its patent urea pure technology (2) and its high concentration of salicylic acid which allows to reduce calluses and stubborn calluses of very dry feet in 7 days (1) only! Its non greasy formula spreads easily and penetrates quickly.