Korean: 티이에이-운데실레네이트 · CAS 84471-25-0 · Functions: preservative, surfactant - cleansing
Restricted MFDS restricted ingredients
Conditions (official MFDS text, Korean):
* 배합한도 : ∙ 사용 후 씻어내는 제품에 산으로서 0.2%
∙ 기타 제품에는 사용금지
Source: MFDS — cosmetic ingredient use restrictions · checked Oct 17, 2026
Restricted Annex III/62
Maximum: (a) 2.5%
Conditions: Product type: (a) Leave-on products (b) Rinse-off products (a) (b) - Do not use with nitrosating systems - Minimum purity: 99% - Maximum secondary amine content: 0.5% (applies to raw materials) - Maximum nitrosamine content: 50 microgram/kg - Keep in nitrite-free containers
Source: EU CosIng — Annex III · checked Oct 17, 2026
Approved preservative Annex V/18
Maximum: 0.2% (as acid)
Conditions: Undec-10-enoic acid and its salts
Source: EU CosIng — Annex V · checked Oct 17, 2026
No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.
How TEA-Undecylenate is treated in 5 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): <사용제한성분> * 【제한】 적용 및 사용범위 : (a)씻어내지 않는 제품 (b)씻어내는 제품 * 【화장품 중 최대사용농도】 배합한도 (일반) : (a)총량 2.5% * 기타 제한조건 및 요구사항 : 니트로화 시스템과 함께 사용하지 않고,니트로아소민의 생성되지 않도록 하고,최저순도:99%원료중 2차 알킬아민의 최대함량은0.5%,제품중 최대함량은 50μg/kg이며 질산염이 없는 용기에 보존 <사용제한 방부제> * 【화장품 중 최대사용농도】 배합한도 (일반) : 총량 0..2%(산으로 계산) |
| AS ASEAN (10 countries) | Restricted | MFDS summary (Korean): * 【Restrictions】 Field of application and/or use : (a) non-rinse-off products (b) other products * 제한 【사용 범위】 : (a) 씻어내지 않는 제품 (b) 기타 제품 * 【Restrictions】 Maximum authorised concentration in the finished cosmetic product : (a) 2.5% * 제한 【완제품에서 허용된 최대 농도】 : (a) 2.5% * 【Restrictions】 Other... |
| TW Taiwan | Restricted | MFDS summary (Korean): ※ 未列於本表中之防腐劑成分，倘歐、美、日三國家地區政府已公告准用且有其限量管制規定者，我國亦依其限用標準准予使用。 倘前述三國家地區政府管理有差異時，則採其中限量規定方式最安全者。 ※ 本表所稱之口腔製劑，包含非藥用牙膏、漱口水類及美白牙齒類等化粧品。 * 단서조항 : ※ 未列於本表中之防腐劑成分，倘歐、美、日三國家地區政府已公告准用且有其限量管制規定者，我國亦依其限用標準准予使用。 倘前述三國家地區政府管理有差異時，則採其中限量規定方式最安全者。 ※ 本表所稱之口腔製劑，包含非藥用牙膏、漱口水類及美白牙齒類等化粧品。 ※ 본 표에 열거되지 않은 방부제 성분은 유럽, 미국,... |
| BR Brazil | Restricted | MFDS summary (Korean): <배합한도 : Trialkylamines and trialkanolamines and their salts> * Restrictions 【Field of application and/or use】 : (a) Products without rinse. (b) Other products. * 제한 【사용 범위】 : (a) 씻어내지 않는 제품 (b) 기타 제품 * Restrictions 【Maximum concentration permitted at final product】 : (a) 2.5% * 제한 【완제품에서 허용된... |
| AR Argentina | Restricted | MFDS summary (Korean): <배합한도 : Trialkylamines and trialkanolamines and their salts> * Restrictions 【Field of application and/or use】 : (a) Products without rinse. (b) Other products. * 제한 【사용 범위】 : (a) 씻어내지 않는 제품 (b) 기타 제품 * Restrictions 【Maximum concentration permitted at final product】 : (a) 2.5% * 제한 【완제품에서 허용된... |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 17, 2026
TEA-UNDECYLENATE 티이에이-운데실레네이트
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) 2.5%. The same records also list it as: Approved preservative. A restricted ingredient is allowed within the stated conditions.
In Korea's MFDS records it is listed as “Restricted” (MFDS — cosmetic ingredient use restrictions). 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: preservative, surfactant - cleansing.
Korea's MFDS standard Korean name is 티이에이-운데실레네이트.
CAS 84471-25-0 (from official records).