AHA BHA Serum: What It Actually Does and Who Should Use One

"AHA BHA" gets thrown around a lot in skincare — on packaging, in reviews, in every "get clear skin" video you've scrolled past. But if you've never actually used one, it's fair to have no idea what it does, whether it's right for your skin, or if it's about to leave you red and peeling.

Here's the clarity you're actually looking for.

What AHA and BHA Actually Do

They're not the same thing, even though they usually show up together.

AHAs (alpha hydroxy acids) work on the surface. They dissolve the dead skin cells sitting on top, which is what smooths texture, fades dullness, and helps even out post-acne marks over time.

BHA (beta hydroxy acid, usually salicylic acid) works differently — it's oil-soluble, so it can get down into your pores and clear out the buildup that causes blackheads and breakouts in the first place.

Together, they cover both problems: what's sitting on your skin, and what's clogging your pores underneath it. That's why they're usually paired rather than used alone.

What Is AHA BHA Serum Used For?

If you're dealing with breakouts, blackheads, congested or textured skin, or dullness that a regular cleanser hasn't touched, this is the category of product built for that. It's not a spot treatment — it's a leave-on exfoliant that works across your whole face to keep pores clear and texture smooth over time.

It's not for everyone, though. If your skin is currently irritated, compromised, or reactive, or you're pregnant or breastfeeding, this isn't the right product to reach for — exfoliating actives need skin that can tolerate them.

How to Introduce It Without Irritation

This is where most people go wrong with actives in general: they use too much, too often, too soon.

Start with two to three nights a week, not every night. Apply to clean, dry skin, and always follow with a moisturiser — exfoliating actives work best when your barrier is supported, not left bare. And because your skin is more sensitive to sun after exfoliating, SPF during the day isn't optional.

Expect a purging phase in the first week or two as your skin adjusts — that's normal. Real results (fewer breakouts, clearer pores) typically show up around the three to four week mark, with smoother, more even skin by week six to eight.

The AHA/BHA Resurfacing Serum

This is exactly what our AHA/BHA Resurfacing Serum is built to do — 10% AHAs and 2% salicylic acid to exfoliate and clear pores, balanced with niacinamide, hyaluronic acid, and hemp seed extract so you get real exfoliation without stripping your barrier. It's a lightweight gel that absorbs in seconds, made fresh in Sydney for maximum potency, and formulated for evening use only.

Not sure if exfoliating actives are right for your skin right now? Take our 2-minute skin concern quiz and we'll help you figure out where to start.

The Bottom Line

AHA BHA isn't a trend — it's two ingredients doing two different jobs, together clearing what's built up on your skin and what's clogged underneath it. Used consistently, and introduced slowly, it's one of the most effective things you can add to a routine for breakouts, texture, and congestion.

Shop the AHA/BHA Resurfacing Serum and give your skin a formula that's actually built to clear it, not just calm it down.

Vegan. Cruelty-free. Made fresh in Sydney.