Salicylic Acid — Benefits, How to Use & Top Products in South Africa

Salicylic acid is the gold standard BHA (beta hydroxy acid) for acne-prone and congested skin. Oil-soluble by nature, it penetrates deep into pores to dissolve the sebum and dead cell build-up that causes blackheads, whiteheads, and breakouts.

What is salicylic acid?

Salicylic acid is a beta hydroxy acid derived from willow bark. Unlike AHAs which work on the skin's surface, salicylic acid is lipophilic — it dissolves in oil — allowing it to travel through the sebaceous glands and exfoliate from within the pore. This makes it uniquely effective for oily and acne-prone skin types.

Benefits of salicylic acid

Salicylic acid unclogs pores, reduces blackheads and whiteheads, prevents new breakouts, and reduces excess oil production. It also has anti-inflammatory properties that calm existing acne and reduce redness. With consistent use it visibly minimises pore size and refines skin texture over time.

How to use salicylic acid

Start with 0.5–1% concentration if you are new to BHAs. Use every second night initially, then increase to nightly as your skin adjusts. Apply after cleansing and toning, before heavier serums and moisturiser. Always follow with SPF in the morning — salicylic acid increases photosensitivity. Avoid combining with retinol on the same evening until your skin has adapted to both actives separately.

Salicylic acid and skin of colour

For darker skin tones common across South Africa, salicylic acid is preferable to many other acne treatments because it effectively clears breakouts with a lower risk of triggering post-inflammatory hyperpigmentation compared to more abrasive physical exfoliants. Consistent use of SPF is essential when using any chemical exfoliant.

Who should avoid salicylic acid?

Those with aspirin allergies, pregnant women, and those with very dry or compromised skin barriers should use salicylic acid with caution or avoid it. Always patch test first. If sensitivity or excessive dryness occurs, reduce frequency before discontinuing.

Top salicylic acid products in South Africa

BeautyOnTApp stocks leading BHA formulas from COSRX, SOME BY MI, and Skin Functional — available online and in all 6 stores. Unsure which formula is right for your skin? Book a skin analysis (R285) for a personalised plan.

Related guides: Glycolic Acid | Niacinamide | Full Ingredient Glossary