While sunscreen and moisturizer share some ingredients, their primary functions differ significantly. While sunscreen's main purpose is to protect the skin from harmful UV rays, moisturizer focuses on increasing skin hydration.
Some sunscreens contain moisturizing ingredients like hyaluronic acid, squalane, and vitamin C, which can contribute to hydration. In these cases, sunscreen can sometimes be used as a moisturizer, especially for individuals with oily skin or those seeking a more streamlined skincare routine.
However, it's important to note that not all sunscreens are formulated with moisturizing ingredients. Additionally, even with hydrating components, sunscreen may not provide the same level of moisture as a dedicated moisturizer.
Ultimately, the answer depends on your individual skin type and needs. If you have dry skin, it's generally recommended to use both a separate moisturizer and sunscreen for optimal hydration and sun protection.