3 ingredients with Korea limits or conditions.
Potassium Hydroxide, Salicylic Acid, Tocopherol2 ingredients with EU limits or conditions.
Potassium Hydroxide, Salicylic AcidNo prohibited or restricted ingredients found in U.S. records.
| # | Ingredient (as listed) | KR Korea | EU EU | US U.S. |
|---|---|---|---|---|
| 1 | Water | — | — | — |
| 2 | Glycolic Acid | — | — | — |
| 3 | Lactic Acid | — | — | — |
| 4 | Potassium Hydroxide | Restricted | Restricted · (a) 5% · (b) 2% · 4.5%… | — |
| 5 | Gluconolactone | — | — | — |
| 6 | Mandelic Acid | — | — | — |
| 7 | Dipropylene Glycol | — | — | — |
| 8 | Panthenol | — | — | — |
| 9 | Salicylic Acid | Restricted | Restricted · (a) 3.0% · (b) 2.0% ·… Approved preservative · 0,5% · 0,5% | — |
| 10 | Methylpropanediol | — | — | — |
| 11 | 1,2-Hexanediol | — | — | — |
| 12 | Octyldodeceth-16 | — | — | — |
| 13 | Citric Acid | — | Approved preservative · 0,2% · 0,0024% | — |
| 14 | Hydroxyethylcellulose | — | — | — |
| 15 | Pentylene Glycol | — | — | — |
| 16 | Sodium Polyacryloyldimethyl Taurate | — | — | — |
| 17 | Cyanocobalamin | — | — | — |
| 18 | Polyacrylate Crosspolymer-6 | — | — | — |
| 19 | Hydroxypropyl Starch Phosphate | — | — | — |
| 20 | Ethylhexylglycerin | — | — | — |
| 21 | Capryloyl Salicylic Acid | — | — | — |
| 22 | Polysorbate 60 | — | — | — |
| 23 | Disodium Phosphate | — | — | — |
| 24 | Sodium Phosphate | — | — | — |
| 25 | Tocopherol | Restricted · 20% | — | — |
| 26 | Allantoin | — | — | — |
| 27 | Hydrolyzed Hyaluronic Acid | — | — | — |
“—” means no specific record for that ingredient in that jurisdiction's lists — it is not an approval. Restricted ingredients are allowed within limits (concentration, product type, label warnings); a product listing one is not necessarily over the limit. How we check.
Ingredient list from COSRX official store, retrieved Oct 17, 2026. Formulas change — check the label on the package you buy.
None of the fragrance allergens the EU requires to be labelled appear in this ingredient list.
Source: EU Cosmetics Regulation Annex III as amended by Regulation (EU) 2023/1545 — the list grew from 26 to over 80 entries; it applies to new products from 31 July 2026 and to all products from 31 July 2028. Shown for information; it is not a sign that a product is unsafe.
“Keep out of direct sunlight. Keep out of reach of children.” — Common precautions required on all cosmetics in Korea (Cosmetics Act Enforcement Rule, Annex 3)
This formula lists ingredients that are known to break down faster in heat, light or air:
Ingredients in this formula that are prohibited or limited in other markets, from the overseas regulation database compiled by Korea's MFDS. Limited means allowed within conditions.
| Market | Prohibited | Limited |
|---|---|---|
| CN China | None found | Potassium Hydroxide, Salicylic Acid |
| AS ASEAN (10 countries) | None found | Glycolic Acid, Lactic Acid, Potassium Hydroxide, Salicylic Acid |
| JP Japan | None found | Allantoin, Panthenol, Salicylic Acid |
| TW Taiwan | None found | Allantoin, Citric Acid, Glycolic Acid, Lactic Acid, Mandelic Acid, Potassium Hydroxide, Salicylic Acid |
| CA Canada | None found | Citric Acid, Gluconolactone, Glycolic Acid, Lactic Acid, Mandelic Acid, Salicylic Acid |
| BR Brazil | None found | Citric Acid, Potassium Hydroxide, Salicylic Acid |
| AR Argentina | None found | Citric Acid, Potassium Hydroxide, Salicylic Acid |
Products from other brands whose ingredient lists overlap most with this one. The score weighs the first ingredients most (labels list them roughly by amount), skips ingredients found in most products, and counts UV filters and less common ingredients more. Similar ingredient lists (not a test of how they work) — amounts, texture and results can differ.
Based on the listed ingredients only; recalculated weekly. Not a judgment of which product is better, safer or the same.
Information only, not medical advice. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist before use.
We found no prohibited ingredients. 2 ingredients have limits or conditions in the EU's CosIng records (Potassium Hydroxide, Salicylic Acid). That usually means a maximum amount, a product type or a label warning — not a ban.
We found no prohibited ingredients. 3 ingredients have limits or conditions in Korea's MFDS records (Potassium Hydroxide, Salicylic Acid, Tocopherol). That usually means a maximum amount, a product type or a label warning — not a ban.
We found no prohibited or restricted ingredients in the FDA's records for its listed ingredients. This is a records check, not an approval.
None of the fragrance allergens the EU requires to be labelled appear in its ingredient list.
Ingredient lists are in descending order of amount down to about 1%. The first five listed are: Water, Glycolic Acid, Lactic Acid, Potassium Hydroxide, Gluconolactone. In total 27 ingredients are listed.
Yes — we have 10 official records linked to the brand or this product. The latest is from January 2026 (US). See the list on this page for each source.
From COSRX official store on October 17, 2026. We re-read it every week and keep earlier versions if the formula changes.