What are AHA and BHAs?
We know how important it is to understand what you are putting on your skin. By now, you may have heard about alpha hydroxy acids (AHAs) and beta hydroxy acids (BHAs) and how essential they are for maintaining youthful-looking skin. Next to using sunscreen every day, a well-formulated AHA- or BHA-based treatment is critical to maintaining a healthy, hydrated, more even-toned complexion. Dr. Murad was one of the pioneers of using AHAs in topical skincare, helping modernise skin science. Let’s look at the difference between AHAs and BHAs to see which is right for you.
AHAs are naturally occurring substances found in various fruits, sugar cane and sour milk. Glycolic Acid, the AHA found in sugar cane, is used in many Murad products because it is especially well suited for use in skincare.
The main benefit of AHAs is their ability to exfoliate the skin to repair dry, ageing and sun-damaged skin. Glycolic Acid works by loosening the bond that holds together the top layers of dead skin cells. By removing the excess build-up on the surface of the skin, AHAs allow newer, softer, healthier-looking skin to emerge. An additional benefit to clearing excess build-up is that moisturisers and treatments can penetrate better.
AHAs also help with age spots and skin discoloration, and the reduction of fine lines and wrinkles. Using AHAs does, however, can make your skin more vulnerable to damage from the sun—a concern with any kind of exfoliating treatment. So always use a moisturiser containing SPF 15 or higher.
What are BHAs?
BHAs are more commonly known as Salicylic Acid. The main difference between AHAs and BHAs is oil solubility. AHAs are water soluble only, while BHAs are oil soluble. This means BHAs get down into the pores to cut through the oil that’s clogging them. They also have antibacterial and anti-inflammatory properties, so BHAs are perfect for treating acne-prone skin and blackheads. The most common BHA in skincare products is Salicylic Acid, which occurs naturally in willow bark and sweet birch. Like AHAs, BHAs make your skin more vulnerable to damage from the sun, so always use a moisturiser containing SPF 15 or higher when you treat your skin with BHAs.