COSRX BHA Blackhead Power Liquid Exfoliating Essence

COSRX BHA Blackhead Power Liquid is a lightweight exfoliating essence built around 4% betaine salicylate, a gentle plant-derived BHA. It works on the surface and inside the pores to loosen build-up and sweep away dead skin cells, leaving the skin looking smoother and more even.

What it does for your skin

This essence helps the look of clogged, congested pores and visible blackheads by softening the debris that collects in them. Unlike harsher acids, the betaine salicylate base exfoliates while keeping the skin feeling comfortable rather than tight or stripped.

Key ingredients

• 4% Betaine Salicylate (BHA): a mild beta hydroxy acid that exfoliates inside the pores and across the surface for a clearer, smoother appearance.
• Willow Bark (Salix Alba) Extract: a botanical source that complements the exfoliating step.
• Niacinamide: helps the skin look brighter and more even in tone.
• Hyaluronic Acid: draws in moisture so skin stays hydrated and supple during exfoliation.

Who is it for?

Best suited to oily and combination skin that looks shiny through the day or shows visible blackheads and enlarged-looking pores. Because it contains an active acid, it is a good fit for those who already have experience using exfoliating acids in their routine.

How to use

After cleansing and toning, apply a small amount to a cotton pad or your fingertips and smooth it over dry skin, focusing on the nose, chin and other oilier areas. Start two to three times a week, then adjust to your skin's comfort. Follow with moisturiser, and use a broad-spectrum sunscreen during the day, as acids can make skin more sensitive to the sun.