Detailed answer

While serums are designed to deliver concentrated active ingredients deep into the skin, moisturizers are specifically formulated to hydrate and seal in moisture. Serums provide targeted treatment for specific concerns such as brightening, anti-aging, or acne-fighting, but they lack the emollients and occlusives that moisturizers contain. Moisturizers act as a protective barrier, preventing moisture loss and providing essential hydration. Ideally, both serums and moisturizers should be used together in a skincare routine for optimal results. Serums can be applied before moisturizers to maximize their benefits and address specific concerns, followed by a moisturizer to lock in hydration and maintain the skin's moisture balance.