Active ingredient
Salicylic Acid
INCISalicylic Acid
Last reviewed by BIOSAR Scientific Team, PharmD, Cosmetic Chemistry, Pharmacy practice on .
What it is
Salicylic acid is a lipid-soluble beta-hydroxy acid used in skincare to unclog pores, refine the appearance of comedones, and gently exfoliate. Its lipophilicity lets it penetrate the sebum-rich follicular environment and dissolve corneocyte adhesions inside the pore. Pairs with niacinamide. Layer carefully with retinol or benzoyl peroxide — alternate routine days to limit irritation.
Pregnancy and breastfeeding
Use with caution
Use with caution — consult your clinician.
ACOG and Mother to Baby consider low-percentage topical salicylic acid (≤2%) on limited areas acceptable during pregnancy and lactation. High-percentage chemical peels and oral salicylates are avoided throughout the perinatal period.
Mechanism in detail
What Salicylic Acid does
Beta-hydroxy acid. Oil-soluble exfoliant used inside the pore to help remove sebum and dead keratinocytes. Standard pharmacy active for blemish-prone skin. Pregnancy use: topical Salicylic Acid at low cosmetic concentrations is considered acceptable during pregnancy when applied to limited areas and without occlusion. Consult your doctor for your specific situation.
Evidence
What the research says
- −60%Visibly clearer skin in a 12-week peel trialIn a controlled trial of mild-to-moderate acne, 30% salicylic acid cut the mean acne-severity score by 60.4% over six peels. It also reduced comedones by 53% and inflamed lesions by around 70%.Read the study →J Cosmet Dermatol 2017 (Dayal et al.)
Layering guidance
Use Salicylic Acid carefully alongside
These ingredients work well in a routine but are best applied at different times of day or on alternating days to limit irritation.
Where it helps
Concerns Salicylic Acid addresses
Acne
Acne is rarely just acne. It is the anxiety before a meeting, the photo you skip, the makeup routine that started as "a little" and is now…
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The first time you notice it is rarely a wrinkle. It is a quality of light — the way your skin catches it differently in a morning mirror,…
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Dryness is a barrier dysfunction in which skin loses water faster than it can retain or replenish it, presenting as flaking, tightness,…
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Dull skin is the visible loss of luminosity, where the surface appears flat, grey, or fatigued instead of light-reflective. The underlying…
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For the months you have been finding more hair on the pillow than the comb. For the part line that has slowly widened. For the new mother,…
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Across Fitzpatrick III–V skin tones — the majority of darker skin tones — the most common consultation is the same: the patch on the…
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Sun damage is the cumulative photoaging caused by ultraviolet radiation, presenting as solar lentigines, irregular pigmentation, fine…
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