Korean: 포타슘o-페닐페네이트 · Functions: antimicrobial
Restricted MFDS restricted ingredients
Conditions (official MFDS text, Korean):
* 배합한도 : 페놀로서 0.15%
Source: MFDS — cosmetic ingredient use restrictions · checked Oct 17, 2026
Approved preservative Annex V/7
Maximum: (a) 0,2 % (as phenol (b) 0,15 % (as phenol)
Conditions: Product type: (a) Rinse-off products (b) Leave-on products When o-Phenylphenol and Sodium o-Phenylphenate are used together, the combined concentration (as phenol) shall not exceed 0,2 % in rinse-off and 0,15 % in leave-on products. Not to be used in applications that may lead to exposure of the end-user’s lungs by inhalation. Not to be used in oral products.
Required label warning: Avoid contact with eyes.
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 Potassium O-Phenylphenate is treated in 4 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): * 【화장품 중 최대사용농도】 배합한도 (일반) : 총량 0.2%(페놀로 계산) |
| 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): * Restrictions 【Maximum concentration permitted at final product】 : 0.2% (expressed as phenol) * 제한 【완제품에서 허용된 최대 농도】 : 0.2%(페놀로서) |
| AR Argentina | Restricted | MFDS summary (Korean): * Restrictions 【Maximum concentration permitted at final product】 : 0.2% (expressed as phenol) * 제한 【완제품에서 허용된 최대 농도】 : 0.2%(페놀로서) |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 17, 2026
POTASSIUM O-PHENYLPHENATE 포타슘o-페닐페네이트
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 “Approved preservative” (EU CosIng — Annex V). The maximum allowed is (a) 0,2% · (b) 0,15%. It is allowed for that use 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: antimicrobial.
Korea's MFDS standard Korean name is 포타슘o-페닐페네이트.