COSRX AHA/BHA Clarifying Treatment Toner: expiry date and ingredients
How to read the expiry date printed on COSRX AHA/BHA Clarifying Treatment Toner, then what it is mostly made of and which ingredients do the work — based on the ingredient list the brand publishes.
Ingredient list from the US version (source checked 2026-10-29).
An exfoliating toner with glycolic acid, betaine salicylate and willow bark water, said to clear impurities, refine texture and pores and hydrate in one step.
Manufacture date and shelf life
Can I tell when my COSRX AHA/BHA Clarifying Treatment Toner was made from its batch code?
You do not need to. Korean cosmetics print the expiry date (or the manufacture date plus a period-after-opening) on the pack, for example EXP20270701 or MFD20240701.
How long does COSRX AHA/BHA Clarifying Treatment Toner last unopened?
COSRX does not publish an unopened shelf life we could verify (checked October 2026). Go by the date printed on the pack; Korean imports always carry one on the Korean label.
How long can I use it after opening?
Look for the open-jar symbol on the pack (for example 12M = 12 months after opening). Our period-after-opening calculator gives the exact date.
What it targets
Based on which ingredients are in it, how high up the list they are, and whether they are key actives.
Key ingredients
AHA that loosens dead skin cells for smoother, brighter skin. Increases sun sensitivity.
Ingredient guide →Provitamin B5. Soothes, hydrates and supports barrier repair.
Ingredient guide →Worth knowing
- Contains exfoliating acids (Glycolic Acid), which can make skin more sensitive to the sun. Use sunscreen during the day.
What most of it is made of
- WaterBase
- Salix Alba (Willow) Bark WaterPlant extract
- Pyrus Malus (Apple) Fruit WaterPlant extract
- Butylene GlycolHumectant
- 1,2-HexanediolHumectant
We couldn’t find a marker ingredient (such as phenoxyethanol) to place the 1% line.
Full ingredient list, decoded (11)
| 1 | Water정제수The base of most creams and toners; dissolves the water-loving ingredients. | Base |
| 2 | Salix Alba (Willow) Bark Water흰버드나무껍질수Plant extract, usually present in small amounts for conditioning. | Plant extract |
| 3 | Pyrus Malus (Apple) Fruit Water사과수Plant extract, usually present in small amounts for conditioning. | Plant extract |
| 4 | Butylene Glycol부틸렌글라이콜Light humectant and solvent that helps other ingredients spread and absorb. | Humectant |
| 5 | 1,2-Hexanediol1,2-헥산다이올Humectant that also helps preserve the formula; very common in Korean skincare. | Humectant |
| 6 | Sodium Lactate소듐락테이트Humectant that helps skin hold on to water. | Humectant |
| 7 | Glycolic Acid글라이콜릭애씨드AHA that loosens dead skin cells for smoother, brighter skin. Increases sun sensitivity.Ingredient guide → | Exfoliant |
| 8 | Betaine Salicylate베타인살리실레이트Gentle exfoliant related to salicylic acid (BHA). | Exfoliant |
| 9 | Allantoin알란토인Soothing, softening ingredient. | Soothing |
| 10 | Panthenol판테놀Provitamin B5. Soothes, hydrates and supports barrier repair.Ingredient guide → | Soothing |
| 11 | Ethyl Hexanediol에틸헥산다이올Humectant that helps skin hold on to water. | Humectant |
Based on the ingredient list the brand publishes; formulas can change and differ by country. The order shows relative amounts, not exact percentages. General information, not medical advice.
Ingredient list as published on the brand’s official website. Formulas change and can differ by country, so check the list on your pack too. General information, not medical advice.