After soaking, spread product over callus and allow to penetrate for 3-5 minutes. Wipe away excess and remove callus with file or buffer, then rinse thoroughly with soap and water.Warnings: Promptly wash off Callus Eliminator after use. Avoid contact with skin other than callused areas. Do not apply to broken skin. If product gets into eyes, flush thoroughly with water for 15 minutes. If irritation persists, contact a physician immediately. KEEP AWAY FROM CHILDREN.