AHA 7 Whitehead Power Liquid

COSRX AHA 7 Whitehead Power Liquid is a 7% glycolic acid liquid aimed squarely at the small white bumps and the rough, uneven texture that come with them. You sweep it on with a cotton pad like a toner, and COSRX is clear that this one is meant for people who already know their way around acids.

What it actually does

• Exfoliates with 7% glycolic acid. That is the single active the brand builds the whole product around — an AHA working on the surface rather than inside the pore.
• Targets whiteheads. Clearing those tiny white bumps is the stated purpose, not a side benefit.
• Pushes along cell turnover. COSRX describes it as encouraging skin to shed and renew, which is how it gets to smoother texture.
• Brightens and evens. The brand's claim is a more radiant, more even-toned complexion as the dead surface layer comes away.
• Suits dry and combination skin. Those are the skin types COSRX names for this liquid.

How to use

1. Start with clean skin. Cleanse before anything else.
2. Soak a cotton pad. Sweep a thin layer across the face, keeping away from eyes and mouth.
3. Build up slowly. It is flagged as best for experienced acid users — spacing out the first few applications is sensible.
4. SPF 30 or higher during the day. If you use it in the morning, a broad-spectrum sunscreen is not optional.

Is it right for you?

Questions

What acid is in it, and how much?

Glycolic acid at 7%, an AHA. That is the only active strength COSRX states for this product.

Is it suitable for beginners?

COSRX marks it as best for experienced users. If acids are new to you, something gentler is the better starting point.

Do I need sunscreen with it?

Yes, if you use it in the morning. The instructions call for a broad-spectrum sunscreen rated SPF 30 or above afterwards.

Is this a toner or a treatment?

COSRX refers to it as a toner in use and applies it on a cotton pad, but it behaves as an exfoliating treatment step given the glycolic acid content.

How long does delivery take?

Delivery takes 3 to 21 working days, depending on availability. Working days exclude weekends and official holidays.

How can I pay?

Credit card, debit card, Instapay and mobile wallets — no cash on delivery.

What if my order arrives damaged?

Report it within 1 day of delivery with a photo. We accept returns for defective, damaged or expired items only, and refunds go back to your original payment method within 15–30 days.