Serum
No prohibited or restricted ingredients found in U.S. records.
“—” 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 Mediheal 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)
On the brand's product page“store yours away from direct sunlight.”
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 | Tromethamine |
| AS ASEAN (10 countries) | None found | Tromethamine |
| JP Japan | None found | Panthenol |
| TW Taiwan | None found | 3-O-Ethyl Ascorbic Acid |
| CA Canada | None found | Gluconolactone, Glycerin |
| BR Brazil | None found | Tromethamine |
| AR Argentina | None found | Tromethamine |
Information only, not medical advice. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist before use.