What is the role of lactic acid in acne treatment?

Lactic acid plays a significant role in acne treatment primarily due to its exfoliating properties. As an alpha hydroxy acid (AHA), lactic acid works to remove dead skin cells from the surface of the skin, which helps to prevent clogged pores—a common cause of acne. By promoting cell turnover, lactic acid helps to improve skin texture, making it smoother and more radiant.

Moreover, the exfoliation process facilitated by lactic acid not only helps in maintaining clearer skin but also promotes the fading of hyperpigmentation and acne scars, leading to a more even skin tone over time. This makes it an essential ingredient in products designed to treat and manage acne effectively.

While hydration and moisture are important in skincare, the primary action of lactic acid in acne treatment stems from its ability to exfoliate, rather than merely hydrating the skin, enhancing natural oils, or creating a protective barrier. Understanding the specific role of ingredients like lactic acid enables practitioners to formulate more effective topical treatments and contributes to better outcomes for clients dealing with acne.