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COSRX The Niacinamide 15 Serum

Serum

Check against official records

KR South Korea (MFDS)

2 ingredients with Korea limits or conditions.

Zinc PCA, Tocopherol
EU European Union (CosIng)

1 ingredient with EU limits or conditions.

Zinc PCA
US United States (FDA)

No prohibited or restricted ingredients found in U.S. records.

#Ingredient (as listed)KR KoreaEU EUUS U.S.
1 Water ———
2 Pentylene Glycol ———
3 Niacinamide ———
4 Butylene Glycol ———
5 Acetyl Glucosamine ———
6 1,2-Hexanediol ———
7 Zinc PCA Restricted Restricted · (a) 1% · (b) 0,72% ·… —
8 Trehalose ———
9 Xanthan Gum ———
10 Pullulan ———
11 Allantoin ———
12 Ethylhexylglycerin ———
13 Sodium Phytate ———
14 Citric Acid —Approved preservative · 0,2% · 0,0024% —
15 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 COSRX official store, retrieved Oct 16, 2026. Formulas change — check the label on the package you buy.

Storage & heat

Official storage statements

“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)

Our note — heat, light & air

This formula lists ingredients that are known to break down faster in heat, light or air:

Other markets

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.

MarketProhibitedLimited
CN China None found Zinc PCA
AS ASEAN (10 countries) None found Zinc PCA
JP Japan None found Allantoin
TW Taiwan None found Allantoin, Citric Acid
CA Canada None found Citric Acid
BR Brazil None found Citric Acid, Zinc PCA
AR Argentina None found Citric Acid, Zinc PCA

Recalls & alerts for COSRX

Compare with

COSRX vs COSRXThe Niacinamide 15 Serum vs Centella Blemish CreamCOSRX vs COSRXThe Niacinamide 15 Serum vs Hydrium Moisture Power Enriched CreamCOSRX vs COSRXThe Niacinamide 15 Serum vs Pure Fit Cica CreamCOSRX vs COSRXThe Niacinamide 15 Serum vs Low pH Good Morning Gel CleanserCOSRX vs COSRXThe Niacinamide 15 Serum vs Hydrium Centella Aqua Soothing AmpouleCOSRX vs COSRXThe Niacinamide 15 Serum vs Hydrium Green Tea Aqua Soothing Gel Cream

Information only, not medical advice. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist before use.

Ask KBeauty Verified™
KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.
Reading time:
Views: 0
ChatGPT: 2 Claude: 0 Google · Gemini: 0 Perplexity: 0 Meta AI: 0 Amazon: 0 Others: 0
Read by AI & crawlers
ChatGPT2
Claude0
Google · Gemini0
Perplexity0
Meta AI0
Amazon0
Others0

Named by what the crawler says it is; look-alikes we detect are counted under Others. Google · Gemini includes Googlebot, Google’s search crawler, whose index Google also uses for its AI features; other search engines and bots are in Others. AI visibility →