Does salicylic acid face wash work?
It can help blackheads and mild spots. It loosens the oil and dead skin that block pores. But UK rules cap face products at 2%, so the best wash isn’t the strongest one.
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Does salicylic acid face wash work on spots?
It can help, mostly with blackheads, whiteheads and mild spots. The NHS lists salicylic acid as a skin treatment you can try yourself, with a pharmacist’s advice.
Spots start when pores get blocked with oil and dead skin. Salicylic acid mixes with oil, so it can reach inside the pore.
There it helps break up blocked pores and may cut the oil your skin makes. Experts aren’t sure exactly how.
How a blocked pore turns into a spot
- 1
Oil and dead skin
Extra oil and dead skin cells build up in a pore.
- 2
Blocked pore
The pore clogs. You see a blackhead or whitehead.
- 3
Bacteria grow
Bacteria in the blocked pore cause redness and pus.
- 4
Where it works
Salicylic acid works on steps 1 and 2.
The proof is thin, though. A Cochrane review, which pools the trials on a topic, rated the salicylic acid trials low or very low quality.
In one small trial of 46 people, it may have worked about as well as tretinoin, a prescription cream.
Try it on blackheads and mild spots. If your spots are deep or painful, see a GP.
Is 2% salicylic acid strong enough?
It’s as strong as UK face products get. UK cosmetic rules allow up to 2% in most products, and up to 3% in shampoos and other rinse-off hair products.
Body lotion is capped lower. It can only hold 0.5%, as a preservative.
| Product | Most allowed | Good to know |
|---|---|---|
| Face wash or cleanser | 2% | You rinse it off. |
| Gel, spot treatment or pads | 2% | It stays on your skin. |
| Face moisturiser | 2% | Pick one labelled non-comedogenic (won’t clog pores). |
| Body wash | 2% | Reaches spots on your chest and back. |
| Body lotion | 0.5% | A lower cap than face products. |
| Shampoo | 3% | Rinse-off hair products only. |
| Spray you could breathe in | Not allowed | Rules ban it where it could reach your lungs. |
Sources: UK cosmetics rules; UK SAG-CS
Lower strengths may still help. Early trials of salicylic acid pads found 0.5% and 2% both cut the number of spots. That review came from a company that made pads.
Need something stronger? Ask a pharmacist about other skin treatments, such as benzoyl peroxide.
Face wash, body wash, pads or gel: which is best?
No good study ranks brands. A review of 14 cleanser studies found too few well-run trials to make reliable advice.
So judge the wash by how your skin takes it. NICE advises a cleanser that is non-alkaline, twice a day. That means pH neutral or slightly acidic.
That’s why the best wash isn’t the strongest one. It’s the gentle one you’ll use morning and night. If a wash leaves your skin stinging, switch to a milder one.
Spots on your back or chest? Acne usually affects the face, chest and back. A body wash reaches those spots.
Loose, breathable clothing helps too.
Gels and pads stay on longer than a wash. Use one product at a time so you can tell what your skin is reacting to.
How to use a salicylic acid face wash
Six habits for spot-prone skin
- Wash your skin twice a day with a gentle cleanser.
- Use your fingertips. Don’t scrub, as this can irritate your skin and make acne worse.
- Keep salicylic acid away from your eyes, as it can irritate them.
- Take off make-up before bed.
- Choose moisturiser, sunscreen and make-up labelled non-comedogenic, which means they won’t clog pores.
- Don’t pick or squeeze spots, as this can cause scars.
Sources: NHS; NICE NG198; UK cosmetics rules
Then give it time. NICE says prescribed acne treatments can take 6 to 8 weeks to show results. Give your wash a fair try before you swap.
For sunscreen and moisturiser picks, see sunscreen for your skin and skincare that works.
Salicylic acid side effects and who should skip it
Side effects are usually mild irritation, in a minority of people. Trials also reported flaking and redness.
If your skin gets sore or very red, stop and ask a pharmacist.
- Under 3: UK rules ban salicylic acid in all products for children under 3.
- Pregnant: salicylic acid is closely related to aspirin, and strong peels aren’t advised in pregnancy. Ask a pharmacist before you use any product with it.
- Aspirin doesn’t agree with you: tell the pharmacist before you start.
Tretinoin and other prescription creams work differently. See retinol and tretinoin.
When to speak to a GP
If your spots don’t settle
- 1
Shop treatment
Salicylic acid or benzoyl peroxide on your skin.
- 2
Pharmacist
Advice on skin treatments and supplements like zinc.
- 3
GP
Prescription creams like adapalene, or tablets.
- 4
Skin specialist
Your GP may refer you to a dermatologist.
Source: NHS
See a GP if you have acne and:
- you’ve tried treating it yourself but it’s not getting better
- you have lots of spots, or the spots are deep, painful or causing scars
- you have signs of a skin infection, such as hot, swollen and red skin (redness can be harder to see on brown and black skin)
- it’s affecting your mental health
Hormone changes and some conditions can cause acne. One is PMOS (once called PCOS), a common hormone condition that affects the ovaries. See PCOS treatment.
Never stop or change a prescribed medicine without your prescriber.