As the Strategist’s personal-grooming expert, I spoke to Correa and nine other experts about the best callus removers. All of them recommended seeing a professional pedicurist or podiatrist.

Calluses can heal on their own if the irritation is removed. They can also be reduced with salicylic acid, a pumice stone, or in-office removal by a podiatrist. A callus can form anywhere on the ...