Serum
2 ingredients with Korea limits or conditions.
Potassium Hydroxide, TocopherolNo prohibited or restricted ingredients found in U.S. records.
| # | Ingredient (as listed) | KR Korea | EU EU | US U.S. |
|---|---|---|---|---|
| 1 | Propanediol | — | — | — |
| 2 | Ascorbic Acid | — | — | — |
| 3 | Ethyl Ascorbyl Ether | — | — | — |
| 4 | Glycerin | — | — | — |
| 5 | Dipropylene Glycol | — | — | — |
| 6 | Pentylene Glycol | — | — | — |
| 7 | Butylene Glycol | — | — | — |
| 8 | Potassium Hydroxide | Restricted | Restricted · (a) 5% · (b) 2% · 4.5%… | — |
| 9 | Madecassoside | — | — | — |
| 10 | Glutathione | — | — | — |
| 11 | Ferulic Acid | — | — | — |
| 12 | Carnitine | — | — | — |
| 13 | Pyridoxine | — | — | — |
| 14 | Biotin | — | — | — |
| 15 | Inositol | — | — | — |
| 16 | Folic Acid | — | — | — |
| 17 | Tocopherol | Restricted · 20% | — | — |
“—” 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 Tia'm official store, retrieved Oct 17, 2026. Formulas change — check the label on the package you buy.
“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 |
| AS ASEAN (10 countries) | None found | Potassium Hydroxide |
| JP Japan | None found | Ferulic Acid |
| TW Taiwan | None found | Potassium Hydroxide |
| CA Canada | None found | Glycerin |
| BR Brazil | None found | Potassium Hydroxide |
| AR Argentina | None found | Potassium Hydroxide |
Information only, not medical advice. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist before use.