What is the main ingredient in callus softener?

The main ingredient in callus softeners is sodium hydroxide or lactic acid, which work effectively to break down the tough, hardened skin often found on the feet and hands. Sodium hydroxide acts as a strong alkaline substance that helps to dissolve the keratin proteins in the calluses, making them softer and easier to remove. Lactic acid, on the other hand, is an alpha hydroxy acid that not only helps to exfoliate dead skin cells but also hydrates the skin, providing a dual action in callus removal and skin conditioning.

Other options, like alcohol, are primarily used for disinfecting or degreasing and do not have the necessary properties to soften calluses effectively. Acetic acid is more commonly associated with vinegar and has mild exfoliating effects, but it is not the primary active ingredient in callus softeners. Glycolic acid is also a type of alpha hydroxy acid that can aid in exfoliation but is less commonly used in callus softening compared to lactic acid or sodium hydroxide. Thus, sodium hydroxide and lactic acid are recognized for their specific effectiveness in addressing thickened skin areas, making them the primary components in callus softeners.