Detailed answer

Serum should be applied before moisturizer. This is because serums are formulated with smaller molecules that can penetrate the skin more effectively. By applying the serum first, it can directly target specific skin concerns like wrinkles, dark spots, or dehydration. Once the serum has absorbed into the skin, you can follow up with a moisturizer to provide hydration and seal in the serum's active ingredients. Applying moisturizer after serum ensures that your skin receives both the targeted treatment and necessary hydration for optimal skincare results.