Anyone who has struggled with breakouts has probably come across the terms AHA and BHA. These two ingredients are often seen in exfoliating skincare products, and while they’re both acids, they don’t work the same way. Some people use them separately, while others combine them for more noticeable results.
Understanding what each acid does, how your skin might respond, and how to use them together without causing irritation can help you take a more thoughtful approach to acne care—without guesswork.
Alpha Hydroxy Acids, which include common names like glycolic acid or lactic acid, are known for their ability to exfoliate the outer layer of your skin. These ingredients are water-based, and they work by gently loosening the dead skin cells that build up on the surface.
When applied regularly, AHA can gradually smooth rough texture, even out tone, and help fade marks left behind after breakouts. If your skin often looks dull or feels uneven, using AHA might help it appear fresher and more balanced over time.
Beta Hydroxy Acid, typically salicylic acid, is different in that it dissolves in oil. This quality allows it to travel into the pores, where excess oil and buildup often sit undisturbed. Once inside, BHA gets to work by breaking down that debris, which can lead to clearer skin with more consistent use.
For people dealing with clogged pores, blackheads, or frequent breakouts that feel deep or persistent, this ingredient is often a reliable addition to a skincare routine.
These two ingredients target different layers of your skin, which is why they’re often used in the same routine. While AHA smooths the surface by removing dead cells, BHA focuses on cleaning inside the pores where breakouts typically begin.
If used correctly, this duo can improve your skin’s overall condition by:
This combination tends to work especially well for people with combination or oily skin, where both surface roughness and congestion are common concerns.
It’s possible to use both, but doing so without a plan can easily lead to irritation. Skincare experts often recommend starting slow and paying close attention to how your skin reacts.
Some helpful tips include:
It’s common for some people to go through a short period of adjustment, often called purging. During this time, you might notice more breakouts before the skin begins to clear. If you experience irritation that lingers, it’s best to reduce frequency or consult a skin professional.
Both ingredients offer clear benefits, but they’re not ideal for everyone.
People who might benefit the most include those with:
It’s best to take extra care if you:
When unsure, a patch test is a safe place to start. You can also explore gentler exfoliants like PHA if your skin needs a milder approach.
As a skincare manufacturer, we know that AHAs and BHAs can revolutionize your skin—when used correctly. They work differently on their own, but when used together, they can help clear pores, smooth the surface of your skin, and prevent future breakouts. They’re not magic, and they take time to work, but with consistent use and careful care, they can make a significant difference in your skincare regimen.
So, whether you’re looking to clear up an active breakout or just want to stop a breakout before it happens, this sour duo might be just what your skin needs.
Most skin types do better with 2–4 uses per week. Daily use can be too much, especially for beginners.
BHA, hands down. It’s oil-soluble and made to clean inside pores.
Purging is a temporary breakout that happens when your skin speeds up cell turnover. It’s normal and usually fades in 1–2 weeks.
It’s best not to. Too many actives can irritate your skin. If you want to use both, alternate nights or talk to your dermatologist.
Night is best. Always follow with sunscreen in the morning, as acids make your skin more sun-sensitive.
