4 ingredients with Korea limits or conditions.
Tromethamine, Tocopherol, Urea, Cysteine6 ingredients with EU limits or conditions.
Tromethamine, Benzyl Benzoate, Linalool, Citronellol, Alpha-Isomethyl Ionone, LimoneneNo 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 Skin U official store, retrieved Oct 17, 2026. Formulas change — check the label on the package you buy.
This list includes 5 fragrance allergens that the EU requires to be named on the label when present above 0.001% in leave-on or 0.01% in rinse-off products: Benzyl Benzoate, Linalool, Citronellol, Alpha-Isomethyl Ionone, Limonene.
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 | Tromethamine |
| AS ASEAN (10 countries) | None found | Lactic Acid, Tromethamine |
| JP Japan | None found | Panthenol |
| TW Taiwan | None found | Citric Acid, Cysteine, Lactic Acid, Urea |
| CA Canada | None found | Citric Acid, Glycerin, Lactic Acid, Urea |
| BR Brazil | None found | Citric Acid, Tromethamine |
| AR Argentina | None found | Citric Acid, Tromethamine |
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. 6 ingredients have limits or conditions in the EU's CosIng records (Tromethamine, Benzyl Benzoate, Linalool, Citronellol, Alpha-Isomethyl Ionone, Limonene). That usually means a maximum amount, a product type or a label warning — not a ban.
We found no prohibited ingredients. 4 ingredients have limits or conditions in Korea's MFDS records (Tromethamine, Tocopherol, Urea, Cysteine). 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.
Yes — its list includes 5 that the EU requires to be named on labels: Benzyl Benzoate, Linalool, Citronellol, Alpha-Isomethyl Ionone, Limonene. That is a labelling rule, not a sign the product is unsafe.
Ingredient lists are in descending order of amount down to about 1%. The first five listed are: WATER / AQUA / EAU, GLYCERIN, BUTYLENE GLYCOL, BUTYROSPERMUM PARKII (SHEA) BUTTER, NIACINAMIDE. In total 67 ingredients are listed.
From Skin U official store on October 17, 2026. We re-read it every week and keep earlier versions if the formula changes.