Which type of products may deliver essential hydration in beauty therapy?

Moisturizers are essential in beauty therapy specifically for delivering hydration to the skin. They are formulated with ingredients that help to attract and retain moisture, ensuring that the skin remains hydrated throughout the day. These products often contain emollients and humectants, which work together to create a protective barrier on the skin's surface and draw moisture from the environment or deeper layers of the skin into the outer layer.

While exfoliants are important for removing dead skin cells and improving skin texture, they do not provide hydration. Primers are primarily used to create a smooth canvas for makeup application, often focusing on enhancing the longevity of makeup rather than providing moisture. Serums, on the other hand, can also provide hydration and deliver active ingredients but are typically more concentrated and intended for specific skin concerns rather than serving as the primary source of hydration.

Thus, moisturizers are specifically designed for replenishing the skin’s moisture content, making them the ideal choice for essential hydration in beauty therapy.