What is the role of moisturizers in maintaining a tan?

Moisturizers play a crucial role in maintaining a tan primarily by hydrating the skin. When the skin is well-hydrated, it appears more supple and vibrant, which helps to prolong the longevity of a tan. As the skin dries out, it can lead to uneven fading and patched areas as the outer layer of skin begins to flake off. By consistently applying moisturizers, one helps to maintain smooth and hydrated skin, thus supporting an even and lasting tan.

Moisturizing products not only keep the skin plump but also enhance its overall texture and appearance, making the tan look richer and more natural. Hydration is key in maintaining skin health and, subsequently, the quality of the tan. In contrast, the other options mention functions that do not relate to maintaining a tan—cleaning the skin does not contribute to the preservation of pigmentation, increasing the risk of skin cancer is not a benefit, and providing a UV barrier is not a direct function of moisturizers.