How do alpha hydroxy acids work?


Ask A Dermatologist

How do alpha hydroxy acids work?


Alpha hydroxy acids (AHAs) are a group of natural acids commonly found in fruits and milk. These acids are widely used in skincare products due to their exfoliating and rejuvenating properties.

How do AHAs work?

AHAs work by gently exfoliating the skin's outer layer, promoting cell turnover and revealing newer, fresher skin underneath. This process helps to improve skin texture, reduce the appearance of fine lines and wrinkles, and even out skin tone.

What are the different types of AHAs?

The most common types of AHAs used in skincare products are glycolic acid, lactic acid, citric acid, and mandelic acid. Each type of AHA has its own unique properties and benefits for the skin.

Are there any precautions to take when using AHAs?

While AHAs can provide significant benefits to the skin, it is important to use them with caution. AHAs can increase the skin's sensitivity to the sun, so it is crucial to use sunscreen daily when using products containing AHAs. Additionally, it is recommended to start with a lower concentration of AHA and gradually increase the strength to avoid irritation.

What are the benefits of using AHAs?

Using products containing AHAs can help to improve skin texture, reduce the appearance of fine lines and wrinkles, fade dark spots and hyperpigmentation, and promote a brighter, more youthful complexion. Regular use of AHAs can lead to smoother, more radiant skin.


Alpha hydroxy acids are powerful exfoliating agents that can provide numerous benefits to the skin. By understanding how AHAs work and taking the necessary precautions, you can incorporate these effective ingredients into your skincare routine to achieve a healthier, more radiant complexion.


Toda la información se crea únicamente con fines informativos y no pretende sustituir el asesoramiento, diagnóstico o tratamiento médico profesional.