AHA vs BHA – which acid is right for your skin?

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Exfoliation isn’t about doing more — it’s about doing the right thing for your skin. AHA and BHA are often grouped together, but they don’t do the same job. Understanding the difference is what takes your routine from good to considered.

Surface vs depth

AHA works on the surface. It loosens the buildup of dead skin cells that can leave skin looking dull, uneven and flat. The result is smoother texture and a clearer, more radiant finish.

BHA goes deeper. Being oil-soluble, it moves into the pores where it helps break down excess oil and congestion — the things that lead to breakouts and visible pores.

Different layers. Different outcomes.

What AHA does

AHAs like glycolic, lactic and mandelic acid are known for refining the skin’s surface. They help to:

improve radiance
even out skin tone
soften texture

Skin looks clearer, smoother and more awake.

What BHA does

BHA, typically salicylic acid, works where congestion starts. It helps to:

keep pores clear
reduce breakouts
balance excess oil

Skin feels cleaner, calmer and more balanced.

Which acid should you choose?

It’s less about skin type – and more about skin state.

Dry or dull sin
AHA helps lift what’s sitting on the surface and brings back glow – which makes The Ex the better fit.

Oily or congested sin
BHA helps keep pores clear beneath the surface, making The Green Mask ideal for oily or congested skin.

Breakout-prone sin
Skin prone to clogged pores and blemishes often responds better to BHA formulas like The Green Mask.

Sensitive skin
Gentler AHAs, like lactic or mandelic acid, tend to be better tolerated – which is why The Miracle Mask or The Miracle Fluid can be a better option.

Can you use both acids?

Sometimes. But more isn’t always better. Start slow. Let your skin respond. Adjust from there. For many, one well-chosen acid does more than layering several.

How often should you exfoliate?

1–2 times per week is a good place to start. Consistency matters more than frequency. And always use SPF — exfoliation makes skin more responsive to the sun.

The takeaway

AHA and BHA both exfoliate — but they work on different levels.

AHA refines the surface and restores radiance.

BHA clears the pores and reduces congestion.

It’s not about choosing the “best” acid. It’s about choosing what your skin needs.