How to combine AHA and BHA products

According to a 2009 review, AHAs and BHAs yield fuller skin when used together. This may be due to increased collagen production, which can make both the dermis and epidermis visibly plumper.

Because of this, many occasional-use products, such as Proactiv+ Mark Correcting Pads, contain both acids.

Still, you don’t want to layer AHAs and BHAs on top of one another. These are both exfoliators, so using both can cause dryness and irritation.

You could also use AHAs and BHAs on alternating days. This method works well if you’re using at-home chemical peels that contain AHA.

Another strategy is to use these acids on certain parts of your face only. For example, you can apply an AHA to dry areas and a BHA to oily areas if you have combination skin.