Korean: 옥시퀴놀린 · Functions: antimicrobial, chelating
Restricted MFDS restricted ingredients
Source: MFDS — cosmetic ingredient use restrictions · checked Oct 17, 2026
Prohibited only in certain forms or uses Annex II/395
Conditions: Hydroxy-8-quinoline and its sulphate bis(8-hydroxyquinolinium) sulphate, except for the uses of the sulphate provided for in entry 51 of Annex III
Source: EU CosIng — Annex II · checked Oct 17, 2026
No specific rule on file. The FDA regulates few cosmetic ingredients by name; no rule does not mean approval.
How Oxyquinoline is treated in 6 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) 씻어내는 두발제품 중, 과산화수소 안정제로 사용 (b) 씻어내지 않은 두발제품 중, 과산화수소 안정제로 사용 * 【화장품 중 최대사용농도】 배합한도 (일반) : (a)총량 0.3% (염기성으로 계산) (b)총량 0.03% (염기성으로 계산) except for the uses provided in table 3 |
| AS ASEAN (10 countries) | Restricted | except for the uses provided for in Annex III, Part 1 No 51 |
| TW Taiwan | Restricted | — |
| CA Canada | Restricted | 【Restrictions】 Conditions of Use by product type : (a) As stabilizers for hydrogen peroxide in rinse-off hair products (b) As stabilizers for hydrogen peroxide in leave-on hair products 【Restrictions】 Maximum Concentration Permitted : (a) 0.3% (b) 0.03% |
| BR Brazil | Restricted | MFDS summary (Korean): * Restrictions 【Field of application and/or use】 : (a) stabilizing agent hydrogen peroxide products for treating hair with rinse (b) stabilizing agent hydrogen peroxide products for treating hair without rinsing * 제한 【사용 범위】 : (a) 씻어내는 헤어 트리팅 과산화수소 제품의 안정제 (b) 씻어내지 않는 헤어 트리팅 과산화수소 제품의 안정제 *... |
| AR Argentina | Restricted | MFDS summary (Korean): * Restrictions 【Field of application and/or use】 : (a) stabilizing agent hydrogen peroxide products for treating hair with rinse (b) stabilizing agent hydrogen peroxide products for treating hair without rinsing * 제한 【사용 범위】 : (a) 씻어내는 헤어 트리팅 과산화수소 제품의 안정제 (b) 씻어내지 않는 헤어 트리팅 과산화수소 제품의 안정제 *... |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 17, 2026
OXYQUINOLINE 옥시퀴놀린
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 “Prohibited only in certain forms or uses” (EU CosIng — Annex II). It is not a general ban — the condition reads: “Hydroxy-8-quinoline and its sulphate bis(8-hydroxyquinolinium) sulphate, except for the uses of the sulphate provided for in entry 51 of Annex III”
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, chelating.
Korea's MFDS standard Korean name is 옥시퀴놀린.