Skincare · 3 min read ·

Glycolic acid or salicylic acid: which should I use?

AHAs and BHAs explained in plain English.

Glycolic acid or salicylic acid: which should I use?

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.

More skin tips every week on our socials:

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.

Treatments mentioned

ZO Stimulator Peel

A brightening glow peel that preps, peels and neutralises in one comfortable treatment.

£110 1 hour

Obagi Blue Peel Radiance

A quick, effective lunchtime peel that decongests, brightens and smooths. One of our most popular treatments.

From £110 1 hour

Not sure where to start?

Answer a few quick questions and we will match you with the right treatment, then pick a time that suits you.

Chat on WhatsApp