Cosrx The AHA 2 BHA 2 Blemish Treatment Serum

COSRX The AHA 2 BHA 2 Blemish Treatment Serum is a concentrated spot treatment with 2% glycolic acid (AHA) and 2% salicylic acid (BHA) designed to care for blemishes, blackheads, whiteheads and pores affected by excess sebum.

The formula combines two exfoliating acids with gluconolactone (PHA), Zinc PCA, allantoin and sodium hyaluronate. AHA helps remove surface buildup and smooth rough texture, while BHA works with excess sebum inside pores. Unlike a conventional all-over facial serum, the product comes with serum-soaked pure cotton balls intended for targeted application to problem areas.

Benefits

• Helps improve the appearance of blemishes.
• Helps care for blackheads and whiteheads.
• Helps clear clogged pores and excess sebum.
• Provides exfoliating care for rough and uneven skin texture.
• Helps support a smoother and clearer-looking complexion.
• Convenient cotton-ball format for targeted application.

Who is it for

• Blemish-prone skin.
• Oily and combination skin.
• Skin with blackheads or whiteheads.
• Skin with clogged pores and excess sebum.
• Skin with rough or uneven texture.

Main ingredients

• Glycolic Acid (AHA) 2% – helps exfoliate dead skin cells and smooth uneven surface texture.
• Salicylic Acid (BHA) 2% – helps remove excess sebum and care for clogged pores, blackheads and whiteheads.
• Gluconolactone (PHA) – provides additional gentle exfoliating and skin-conditioning care.
• Zinc PCA – helps support balanced sebum care.
• Allantoin – helps soothe and maintain skin comfort.
• Sodium Hyaluronate – helps attract and retain moisture.

How to use

Using the included tongs, take one serum-soaked cotton ball from the container. Gently tap COSRX The AHA 2 BHA 2 Blemish Treatment Serum directly onto areas of concern. On areas with blackheads or whiteheads, such as the nose and chin, the cotton ball can be gently wiped over the skin. Avoid the eye area. When used during the daytime, follow with sunscreen.

FAQ

How much AHA and BHA does COSRX The AHA 2 BHA 2 Blemish Treatment Serum contain?
The formula contains 2% glycolic acid (AHA) and 2% salicylic acid (BHA).

Is COSRX The AHA 2 BHA 2 Blemish Treatment Serum applied to the whole face?
The product is primarily designed as a targeted treatment. Use the included cotton ball directly on blemishes, clogged pores, blackheads or whiteheads rather than applying it as a conventional all-over serum.

Does COSRX The AHA 2 BHA 2 Blemish Treatment Serum contain PHA?
Yes. The formula also contains gluconolactone (PHA), together with Zinc PCA, allantoin and sodium hyaluronate.

Warnings

• For external use only.
• Avoid the eye area.
• Do not use on wounded or damaged skin.
• If redness, swelling, itching or other irritation occurs during use or after exposure to sunlight, discontinue use and consult a healthcare professional if necessary.
• Use sunscreen during the daytime while using this product.