Skincare · 3 min read ·
Glycolic acid or salicylic acid: which should I use?
AHAs and BHAs explained in plain English.
Quick answer: Glycolic acid (an AHA) smooths and brightens the surface, ideal for dull or sun-damaged skin. Salicylic acid (a BHA) clears inside oily pores, ideal for blackheads and breakouts.
Glycolic
Water-soluble, works on the surface for glow and texture.
Salicylic
Oil-soluble, gets into pores to clear congestion.
Combining
Possible, but start slowly to avoid irritation.
SPF
Acids increase sun sensitivity, so wear SPF.
Common questions
Can I use acids every day?
Some gentle formulas yes, but many people do better with a few times a week.
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Written by the Skin Deep Aesthetics clinical team, 6 Carlisle Road, Derry. This article is general information, not medical advice. Book a consultation for advice about your own skin.

