What is the main function of facial serums?

Facial serums are designed primarily to deliver concentrated active ingredients deep into the skin. These products typically contain a high concentration of beneficial compounds such as vitamins, antioxidants, peptides, and hyaluronic acid, which target specific skin concerns such as aging, dryness, uneven skin tone, or acne.

The formulation of serums allows them to penetrate the skin more effectively than other products, such as creams or lotions. This characteristic enables them to work on a deeper level, providing maximum benefits where they are needed most. Serums usually have a lightweight texture and are applied after cleansing and toning the skin, but before moisturizing, to enhance the effectiveness of the subsequent products used in one's skincare routine.

Cleansing refers to the removal of dirt and impurities from the skin, which is not the role of a serum. While some serums may offer hydration benefits, their primary function is not limited to hydration only, as they are formulated to address various skin issues with targeted ingredients. Therefore, the focus on delivering concentrated active ingredients makes the choice of a serum essential for achieving specific skincare goals.