Products / COSRX / The AHA 2 BHA 2 Blemish Treatment / When to use

When (and how) to use The AHA 2 BHA 2 Blemish Treatment by COSRX

Last updated on June 17, 2025.

Overview

Welcome to our guide on when (and how) to use COSRX The AHA 2 BHA 2 Blemish Treatment.

When to use

We recommend using this product in the morning or evening.

In your routine

This product is most commonly used as step 18 in a routine. Use our Routine Creator to see where you should use this product in your routine.

Fun Fact

26 routines created by our community use this product.

1. Take out the cotton ball using the tongs included. 2. Gently tap a cotton ball directly onto target areas. *Depending on the area of concern, you may gently wipe the blackhead/whitehead on the nose and chin *For daytime use, please be sure to apply sunscreen.

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Pair it with

Here are some of the products that our community often uses together with The AHA 2 BHA 2 Blemish Treatment.

SKIN1004 Madagascar Centella Ampoule Used together in 27% routines

COSRX The Niacinamide 15 Serum Used together in 19% routines

COSRX AC Collection Calming Foam Cleanser Used together in 19% routines

Learn more about the ingredients in this product

Check out our complete breakdown of the ingredients and their benefits/drawbacks

See ingredient breakdown

Learn more

Check out our complete guide to the ingredients in COSRX The AHA 2 BHA 2 Blemish Treatment.

See the full ingredient explanation

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