COSRX The AHA 2 BHA 2 Blemish Treatment Serum – targeted 2% AHA and 2% BHA care for blemishes
COSRX The AHA 2 BHA 2 Blemish Treatment Serum is a targeted serum designed for individual blemishes, clogged pores, blackheads, whiteheads, and uneven texture. The numbers in the name clearly define the formula’s core concept: it combines 2% AHA and 2% BHA acids. This is not an ordinary dropper bottle – the clear serum is dispensed onto the compressed pure cotton balls included in the set, making it designed from the outset for targeted rather than full-face care.
An acid duo with a soothing balance
The product’s strength lies in its clear, no-excessive-promises formulation. Glycolic acid represents the AHA group, while salicylic acid represents the BHA group; together, they help care for uneven skin texture and signs of clogged pores. The formula is complemented by the PHA gluconolactone and skin-comforting ingredients, so the acid-based care does not stand alone. The most memorable detail is the set of dry cotton balls intended for use with the serum itself: it is almost like a compact, single-zone treatment system in one container.
- 2% AHA and 2% BHA: the combination of glycolic and salicylic acids is designed to care for roughness, visible signs of clogged pores, and blackheads.
- PHA support: gluconolactone extends the concept of gentler surface smoothing and complements the core acid duo.
- Skin-comforting ingredients: Zinc PCA, allantoin, sodium hyaluronate, and dipotassium glycyrrhizate help keep skin feeling less dry.
The serum is lightweight, clear, and watery: the cotton ball applies it precisely to the selected area, and once absorbed, it leaves a light, non-heavy layer. Thanks to this format, it naturally fits into the targeted-care step after cleansing and before moisturizing products. It will particularly appeal to those looking for a concentrated, precisely dosed acid treatment for individual problem areas – without an additional greasy or creamy feel.
Usage
After cleansing your face, apply a small amount of COSRX The AHA 2 BHA 2 Blemish Treatment Serum to your fingertips and gently massage it onto the affected areas, avoiding the eye and lip areas. For best results, use it once or twice a week initially, gradually increasing frequency as your skin adjusts. Follow with a moisturizer to help hydrate your skin, and always use sunscreen during the day, as the serum may increase your skin’s sensitivity to the sun. If you experience any irritation, reduce the frequency of use.
Ingredients
Aqua, Propanediol, Polysorbate 20, Glycolic Acid, Salicylic Acid, Gluconolactone, Zinc PCA, Allantoin, Sodium Hyaluronate, Sodium Hydroxide, Dipropylene Glycol, Hydroxyacetophenone, Caprylyl Glycol, Ethylhexylglycerin, Dipotassium Glycyrrhizate, 1-2-Hexanediol, Disodium EDTA
The manufacturer is responsible for the product’s ingredients. Due to possible changes, we always recommend checking the ingredient list directly on the packaging.



In today's cosmetics market, where labels often resemble pages from a chemistry textbook, Cosrx Cosmetics stands out with its simple yet astonishingly effective approach. Their products contain only carefully selected active ingredients:
However, Cosrx Cosmetics cares not only for your skin but also for the planet. All their products are manufactured following the highest quality standards, without cruel animal testing. Additionally, the brand actively strives to reduce packaging waste and promotes sustainable production practices. Isn't it reassuring to know that your chosen cosmetics contribute to a cleaner planet? It's a double benefit—your skin glows, and the world becomes a little better.








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