AHAs and BHAs are two types of acids that are widely used in skin care products to exfoliate and improve the appearance of the skin. Despite having a common goal, they operate in different ways. AHA, also known as alpha-hydroxy acid, works on the surface of the skin and removes dead cells, while BHA, or beta-hydroxy acid, penetrates deeper into pores and removes oil and impurities. This combination of actions can produce impressive results in improving the texture and appearance of the skin.

What are AHAs?

AHAs are water-soluble acids that come from natural sources, such as sugar cane and other fruits. These acids help to exfoliate the top layer of skin, revealing a fresher and more even complexion. Especially for those dealing with issues like uneven tone, fine lines or hyperpigmentation marks, AHAs are a great choice.

What are BHAs?

BHAs are oil-soluble acids that, unlike AHAs, have the ability to penetrate deeper into pores. The best-known BHA is salicylic acid, which is particularly effective at fighting oiliness and acne. It works by clearing pores, reducing inflammation and helping to prevent new acne breakouts.

Similarities and differences between AHAs and BHAs

Both AHA and BHA offer an exfoliating effect, removing dead skin cells and improving its texture. However, the main difference lies in how they work: AHAs are more effective on the skin’s surface, while BHAs penetrate deep into the skin and help tackle clogged pores and excess oil. AHAs are suitable for drier or mature skin, while BHAs are ideal for combination or oily acne-prone skin.

How to use AHA and BHA?

The use of these acids depends on the product you have chosen. Typically, AHAs and BHAs are applied before moisturizer, giving them time to work on the skin. You can start using them twice a week and gradually increase the frequency as your skin adapts. It is important to remember that both of these acids can make the skin more sensitive to the sun, so the use of sunscreen is essential.

Can AHAs and BHAs be combined?

Yes, they can, but they must be used with care. If you choose to combine them, prefer a product that contains both acids in a balanced formula to avoid the risk of irritation. If you want to use different products with AHA and BHA, alternate the days of their use or apply one in the morning and the other in the evening.

These two acids offer impressive results in improving the texture and appearance of your skin, as long as you use them carefully and with proper sun protection.