SCHOLL Complete Corn Removal Treatment Pen 4ml exp 02/2024 The Scholl Corn Removal Pen is an effective way to treat corns and severe or persistent calluses. Visible Results are seen within the first week. The Corn Removal Pen contains a highly concentrated corn & callus removal gel based on TCA-Active™, which means there is no need to scrape or file the corn or callus. The pen is reusable and can treat multiple corns. The TCA-Active™ gel induces peeling of the skin. As this occurs, the thickened skin/corn will disappear and new healthy skin will form. Removes corn without scraping