What is the main function of a serum in skincare?

The primary function of a serum in skincare is to deliver concentrated active ingredients that specifically target particular skin issues, such as fine lines, wrinkles, hyperpigmentation, or acne. Serums are usually lightweight formulations that penetrate deeper into the skin than regular moisturizers, allowing them to effectively address these concerns with a high concentration of beneficial compounds.

Unlike moisturizers, which primarily focus on hydrating the skin and providing a barrier to prevent moisture loss, serums are designed to be more targeted. For example, a serum may contain ingredients like hyaluronic acid for hydration, vitamin C for brightening, or retinol for anti-aging. This high potency makes serums an essential part of a skincare routine for those looking to treat specific skin problems.

While makeup primers are used to create a smooth surface for makeup application and protective layers help to shield the skin from environmental stressors, these functions are not the primary purpose of serums. Overall, serums are an important tool in enhancing skin health and appearance by addressing specific concerns with focused ingredients.