Korean: 라우레스-9 · CAS 3055-99-0 · Functions: surfactant - emulsifying
Restricted MFDS restricted ingredients
Maximum: 2%
Conditions (official MFDS text, Korean):
* 배합한도 : 2%
Source: MFDS — cosmetic ingredient use restrictions · checked Oct 17, 2026
Restricted Annex III/257
Maximum: (a) 3,0 % (b) 4,0 %
Conditions: Product type: (a) Leave-on products (b) Rinse-off products
Source: EU CosIng — Annex III · checked Oct 17, 2026
No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.
How Laureth-9 is treated in 2 more markets, from the overseas cosmetic regulation database compiled by Korea's MFDS. Always confirm with the regulator of that country before selling there.
| Market | Status | Conditions |
|---|---|---|
| CN China | Restricted | MFDS summary (Korean): * 【제한】 적용 및 사용범위 : (a)씻어내지 않는 제품 (b)씻어내는 제품 * 【화장품 중 최대사용농도】 배합한도 (일반) : (a) 3.0 % (b) 4.0 % |
| AS ASEAN (10 countries) | Restricted | MFDS summary (Korean): * 【Restrictions】 Field of application and/or use : (a) Leave-on products (b) Rinse-off products * 제한 【사용 범위】 : (a)씻어내지않는 제품 (b)씻어내는 제품 * 【Restrictions】 Maximum authorised concentration in the finished cosmetic product : (a) 3.0% (b) 4.0% * 제한 【완제품에서 허용된 최대 농도】 : (a) 3.0% (b) 4.0% |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 17, 2026
LAURETH-9 라우레스-9
Information only, not medical advice. Rules change — always check the linked official source. If you are pregnant, have a skin condition or allergies, ask a dermatologist or pharmacist.
In the EU's CosIng records it is listed as “Restricted” (EU CosIng — Annex III). The maximum allowed is (a) 3,0% · (b) 4,0%. A restricted ingredient is allowed within the stated conditions.
In Korea's MFDS records it is listed as “Restricted” (MFDS — cosmetic ingredient use restrictions). The maximum allowed is 2%. A restricted ingredient is allowed within the stated conditions.
We found no specific rule for it in the FDA's records. That is not an approval or a safety statement.
The EU's CosIng inventory lists its functions as: surfactant - emulsifying.
Korea's MFDS standard Korean name is 라우레스-9.
CAS 3055-99-0 (from official records).