4 ingredients with Korea limits or conditions.
Tromethamine, Cetyl-PG Hydroxyethyl Palmitamide, Piroctone Olamine, Tocopherol10 ingredients with EU limits or conditions.
Tromethamine, Cetyl-PG Hydroxyethyl Palmitamide, Piroctone Olamine, Limonene, Tetramethyl Acetyloctahydronaphthalenes, HexamethylindanopyranNo 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 Ryo official store, retrieved Oct 17, 2026. Formulas change — check the label on the package you buy.
This list includes 7 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: Limonene, Tetramethyl Acetyloctahydronaphthalenes, Hexamethylindanopyran, Linalool, Linalyl Acetate, Acetyl Cedrene, Benzyl Salicylate.
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 | Cetyl-PG Hydroxyethyl Palmitamide, Piroctone Olamine, Tromethamine |
| AS ASEAN (10 countries) | None found | Cetyl-PG Hydroxyethyl Palmitamide, Piroctone Olamine, Tromethamine |
| JP Japan | None found | Allantoin, Dipotassium Glycyrrhizate, Piroctone Olamine |
| TW Taiwan | None found | Allantoin, Piroctone Olamine |
| CA Canada | None found | Glycerin |
| BR Brazil | None found | Cetyl-PG Hydroxyethyl Palmitamide, Piroctone Olamine, Tromethamine |
| AR Argentina | None found | Cetyl-PG Hydroxyethyl Palmitamide, Piroctone Olamine, Tromethamine |
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. 10 ingredients have limits or conditions in the EU's CosIng records (Tromethamine, Cetyl-PG Hydroxyethyl Palmitamide, Piroctone Olamine, Limonene, Tetramethyl Acetyloctahydronaphthalenes, Hexamethylindanopyran and 4 more). 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, Cetyl-PG Hydroxyethyl Palmitamide, Piroctone Olamine, 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.
Yes — its list includes 7 that the EU requires to be named on labels: Limonene, Tetramethyl Acetyloctahydronaphthalenes, Hexamethylindanopyran, Linalool, Linalyl Acetate, Acetyl Cedrene, Benzyl Salicylate. 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, ALCOHOL DENAT, ALCOHOL, 2,3-BUTANEDIOL, C9-12 ALKANE. In total 61 ingredients are listed.
From Ryo official store on October 17, 2026. We re-read it every week and keep earlier versions if the formula changes.