What is the primary function of an 'emollient'?

The primary function of an emollient is to soften the skin and treat dry skin. Emollients are substances that create a barrier on the skin’s surface, which helps to lock in moisture, enhance hydration, and reduce dryness or irritation. They typically work by filling in the gaps between skin cells, providing a smooth and soft texture. This makes them particularly useful in managing conditions like eczema or psoriasis, where the skin may be dry and flaky.

In contrast, the other functions mentioned do not align with the primary purpose of emollients. For example, removing makeup involves cleansing agents, exfoliating skin typically requires ingredients designed to slough off dead skin cells, and providing sun protection involves sunscreen agents that shield the skin from ultraviolet radiation. While these functions are important in skincare, they are not the primary role of emollients.