AC Collection Blemish Spot Clearing Serum

COSRX AC Collection Blemish Spot Clearing Serum is for the stage after the spot — the red mark, the dark patch, the dent that stays behind. It is a concentrated serum that sinks in fast and doesn't leave the sticky film that often comes with blemish treatments.

What it actually does

• Works on every stage of a mark. COSRX maps it out in three phases: calming while a spot is still active and red, clearing once it has left a dark mark, and recovery for scarring and uneven texture.
• Addresses depressed scarring. Regenerating indented scars is one of the benefits the brand lists — not something most spot serums claim.
• Brightens discolouration. The brand's stated effect is lighter-looking blemish marks over time.
• Soothes and fades redness. Red post-spot patches are a named target alongside dark ones.
• Absorbs quickly, no tackiness. It is highly concentrated but sinks in rather than sitting on the surface, so it layers under other steps.
• Built with sensitive skin in mind. COSRX lists sensitive skin among the types it is targeted at, along with acne-marked and unevenly textured skin.

How to use

1. Two or three drops. That is the dose COSRX gives — the formula is concentrated.
2. Avoid the eyes and mouth. Place the drops on the areas where marks sit.
3. Spread evenly, then massage in. Keep working it until it has absorbed fully.
4. Moisturise on top. And wear SPF daily — sun exposure darkens post-acne marks faster than anything else can fade them.

Is it right for you?

Questions

Is this for active pimples or for the marks they leave?

Mostly the marks. COSRX does include a calming role for spots that are still red and active, but the serum's focus is the aftermath — dark spots, lingering redness and scarring.

Can I use it all over or only on the spots?

The instructions describe spreading a few drops across the face rather than dabbing single points, which makes sense when marks are scattered. If you only have one or two, there is no harm in keeping it local.

Does it feel sticky?

The brand's point is that it doesn't — it is concentrated but absorbs quickly without a tacky residue, so makeup can go over it.

How long does delivery take?

Delivery takes 3 to 21 working days, depending on availability. Anything already in stock arrives at the fast end of the window; anything brought in for your order takes longer. Working days exclude weekends and official holidays.

Payment and returns?

Credit card, debit card, Instapay and mobile wallets — no cash on delivery. If a bottle arrives defective, damaged or expired, tell us within 1 day of delivery; those are the only cases we take back, and the refund goes to your original payment method within 15–30 days.