Salicylic Acid
Salicylic Acid (a beta hydroxy acid, BHA)
Dissolves oil and sheds dead skin to help pores look clearer.
Salicylic acid is an oil-soluble exfoliant that works inside pores to reduce the look of congestion and help skin appear smoother.
In three sentences
Salicylic acid is a beta hydroxy acid that dissolves in oil. It removes dead skin cells from the surface and penetrates into pores. Studies report salicylic acid as a peeling agent that works at different concentrations.
What it does
It works like a tiny cleaner flowing into pores to wash away oil and dead skin buildup.
Salicylic acid is a beta hydroxy acid (BHA) that dissolves in oil, making it effective for oily and pore-prone skin. It works by removing dead skin cells from the surface and can penetrate into pores to clear congestion. Studies report salicylic acid as a peeling agent that works at different concentrations.
Because salicylic acid sheds skin cells, skin may feel more sensitive during use. The Korean regulatory limit is 0.5% in cosmetics. If you have very sensitive or compromised skin, start with low concentrations and introduce the product gradually.
Typical concentration
Korea: 0.5% as a preservative, up to 2% in rinse-off cleansers; not for children under 3 except in shampoo. US: 0.5 to 2% as an over-the-counter acne ingredient.
Who should be careful
People taking isotretinoin (a strong acne medicine) should be cautious because deep chemical peels are not advised during treatment. Studies report that superficial chemical peels may be possible during isotretinoin use, but deep peels should be avoided; talk to your doctor before using salicylic acid products. During pregnancy, studies report that low-concentration salicylic acid is allowed, but high concentrations are not recommended. If you have sensitive skin or active irritation, test a small amount first.
Pairing
Pairs well with
- Niacinamide (Vitamin B3)
- Glycerin (a humectant)
- Centella Asiatica Extract (also called centella or gotu kola)
- Azelaic Acid
Use with care alongside
- Retinol
- Retinaldehyde
Found in
- Zero Pore Pad 2.0 (70ea)MEDICUBE
FAQ
- Is salicylic acid safe for sensitive skin?
- Salicylic acid can irritate sensitive skin because it sheds skin cells. Start with a low concentration once or twice a week and watch how your skin responds. If redness or dryness occurs, use it less often or stop and choose a gentler option.
- Can I use salicylic acid if I am pregnant?
- Studies report that low-concentration salicylic acid is allowed, but high concentrations are not recommended. Talk to your doctor before using any product while pregnant to make sure it is right for you.
- Will pores stay smaller after I stop using salicylic acid?
- Salicylic acid helps pores look smaller by removing oil and dead skin buildup inside them. The effect lasts only while you use the product. Stop using it and pores will return to their normal appearance over time.
Regulatory status
| Country | Authority | Status |
|---|---|---|
| Korea | MFDS | Allowed |
| United States | FDA | OTC drug ingredient |
| Japan | MHLW | Not evaluated |
Status in one country says nothing about another.
Sources
- Studies report salicylic acid as a peeling agent that works at different concentrations.Salicylic acid as a peeling agent: a comprehensive review. (PubMed, 2015, human)
- Studies report that low-concentration salicylic acid is allowed, but high concentrations are not recommended.Management of Acne in Pregnancy. (PubMed, 2024, human)
- Studies report that superficial chemical peels may be possible during isotretinoin use, but deep peels should be avoided.Isotretinoin and Timing of Procedural Interventions: A Systematic Review With Consensus Recommendations. (PubMed, 2017, human)