BHA vs. AHA: Which Exfoliant Is Right for Your Skin?
Chemical exfoliation has become a popular alternative to scrubs and beads for dealing with rough, dull-looking skin — but not all chemical exfoliants behave the same way. BHA and AHA are the two names that come up most often, and a gentler, fruit-enzyme route exists too. Choosing between them — or finding a formula that leans on the gentler end of any of the three — makes a real difference for anyone with reactive or easily irritated skin.
What an AHA Does
AHAs — alpha hydroxy acids like glycolic or lactic acid — work on the surface of the skin, helping to loosen the bonds between dull, built-up skin cells. They're water-soluble, which means they work mainly on the skin's surface, and they're often associated with a brighter, more even-looking complexion over time.
What a BHA Does
BHAs — beta hydroxy acids, most commonly salicylic acid — are oil-soluble, which lets them move into pores rather than sitting purely on the surface. This is part of why BHA is so often recommended for congested, oily-prone, or texturally rough skin. Betaine Salicylate is a salicylate ingredient used in exfoliating formulas, including our Heartleaf Peeling Pad. Its suitability and recommended frequency depend on the complete formula, product directions, and individual skin response.
How the Two Compare
Texture and Feel
Because BHA can move past surface buildup, it tends to suit rough, dull, or congested skin especially well, while AHA is often favored purely for surface brightness. A gentler BHA ester, like Betaine Salicylate, is often chosen to narrow that gap, though how it feels and how often it can be used depends on the complete formula and individual skin response.
Who Each One Tends to Suit
AHA tends to appeal to people focused on surface tone and brightness. BHA is generally reached for by anyone dealing with rough texture, dullness, or oily-prone, congested-feeling skin — and a gentler BHA ester may make chemical exfoliation more approachable for some sensitive skin types, depending on the complete formula and how their skin responds.
What About Fruit-Enzyme Exfoliation?
For skin that reacts to both BHA and AHA, fruit-enzyme exfoliation is often the gentler third option worth knowing about. Enzymes like papain, drawn from papaya, work differently from acids — instead of dissolving the bonds between cells at a set pH, they target only the surface layer of built-up, dulling-looking skin, which is part of why enzyme formulas are frequently reached for on days when an acid feels like too much.
Our Pore + Dark Spot Brightening Pad takes this route: its textured side is formulated with papaya, apple, and grape fruit extracts for a gentle, enzyme-forward cleanse, while niacinamide, tranexamic acid, and arbutin work on the appearance of pores, dark spots, and uneven tone in the same swipe. It isn't positioned as an acid peel — it's built for anyone who wants the daily habit of a two-sided toning pad without reaching for a dedicated BHA or AHA step.
Where Heartleaf and Centella Fit In
Exfoliation alone can leave reactive skin feeling stripped if it isn't balanced with something soothing. That's where Houttuynia Cordata — known as heartleaf — and a Centella Asiatica complex (Madecassoside, Asiaticoside, Asiatic Acid, and Madecassic Acid) come in. Both are botanical extracts long used in Korean skincare specifically to help comfort the look of irritation, which is why they're so often paired with BHA rather than used on their own.
Building an Exfoliation Routine
A two-sided pad makes it easy to bring any of these three approaches into a routine without adding an extra step. For a dedicated BHA step, our Heartleaf BHA Peeling Pad pairs Betaine Salicylate with heartleaf and Centella so the exfoliating side and the soothing side are built into the same swipe. For a gentler, enzyme-forward daily habit, the Pore + Dark Spot Brightening Pad combines fruit-enzyme cleansing with brightening actives in one pass. Either way, follow with a barrier-supporting moisturizer, like our Dual Barrier Cream, to help lock in comfort once exfoliation is done.
Frequently Asked Questions
Can I use a BHA pad every day?
Follow the directions supplied with the specific product. If you are new to exfoliation or have reactive skin, begin less frequently, patch test first, and reduce use if dryness, stinging, or irritation occurs.
Is BHA safe for sensitive skin?
Sensitive skin tends to do better with a gentler BHA derivative rather than pure salicylic acid at higher strengths, especially when it's paired with soothing botanicals like heartleaf and Centella. A patch test is always a reasonable first step.
Is a fruit-enzyme pad gentler than a BHA or AHA pad?
Enzyme exfoliants are generally considered a gentler entry point than acid exfoliants, since they work only on the surface layer rather than adjusting the skin's pH. That said, individual skin response varies, so patch testing is still worthwhile, especially for reactive skin.
Can I alternate between the Brightening Pad and the BHA Peeling Pad?
Some routines alternate a gentler enzyme-based pad with a dedicated BHA step on different days, rather than layering both in the same routine. Follow each product's own directions and adjust frequency based on how your skin responds.
What's the difference between a peeling pad and a regular toner?
A regular toner is generally formulated to hydrate and prep the skin. A peeling pad is built specifically to deliver an exfoliating ingredient in a controlled, pre-measured way — the textured side does the exfoliating work, while the softer side helps distribute the rest of the formula evenly. A dual-textured brightening pad follows the same two-sided idea, using a fruit-enzyme textured side instead of an acid.