Korean: 소듐설파이트 · Functions: antioxidant, hair waving or straightening, reducing
Restricted MFDS restricted ingredients
Conditions (official MFDS text, Korean):
* 배합한도 : <보존제>
∙ 유리 SO2로 0.2%
<기타배합한도>
∙ 산화염모제에서 유리 SO2로 0.67%
∙ 기타 제품에는 사용금지
Source: MFDS — cosmetic ingredient use restrictions · checked Oct 17, 2026
Restricted Annex III/99
Maximum: (a) 0.67% (as free SO2) (b) 6.7% (as free SO2) (c) 0.45% (as free SO2) (d) 0.40% (as free SO2)
Conditions: Product type: (a) Oxidative hair dye products (b) Hair straightening products (c) Self-tanning products for the face (d) Other self-tanning products For purposes other than inhibiting the development of micro-organisms in the product. This purpose has to be apparent from the presentation of the product
Source: EU CosIng — Annex III · checked Oct 17, 2026
Approved preservative Annex V/9
Maximum: 0.2% (as free SO2)
Conditions: Inorganic sulphites and hydrogensulphites (5)
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 Sodium Sulfite 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) 산화성 염색제 (b) 퍼머제품(스트레이트 제품 포함) (c) 얼굴부위위 자동 썬텐제품 (d) 신체부위의 자동 썬텐제품 (e) 기타제품 * 【화장품 중 최대사용농도】 배합한도 (일반) : (a)총량 0.67%（유리 SO2로 계산) (b)총량 6.7%（유리 SO2로 계산) (c)총량 0.45%（유리 SO2로 계산） (d)총량 0.40%（유리 SO2로 계산） (e)총량 0.2%（유리SO2로 계산) <사용제한 방부제> * 【화장품 중 최대사용농도】 배합한도 (일반) :... |
| AS ASEAN (10 countries) | Restricted | MFDS summary (Korean): (9) As a preservative, see Annexe VI, Part 1, No 9 * 단서조항(주석) : (9) As a preservative, see Annexe VI, Part 1, No 9 (9) 보존제로서, Annexe VI, Part 1, No 9을 참고하십시오. * 【Restrictions】 Field of application and/or use : (a) Oxidative hair dye products (b) Hair straightening products (c) Self- tanning... |
| TW Taiwan | Restricted | MFDS summary (Korean): ※ 染髮、脫色、脫染及燙髮產品之應刊載之注意事項，應依衛生福利部公告刊載之。 ※ 染髮產品之限量標準：係指該成分依產品使用說明書混合後之最高允許使用量。 ※ 化粧品之外包裝或容器，應明顯標示本表所列成分之注意事項。因外包裝或容器表面積過小或其他特殊情形致不能標示者，應於標籤、仿單或以其他方式刊載之。 ※ 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。 ※ 化粧品宣稱效能者，須符合化粧品標示宣傳廣告涉及虛偽誇大或醫療效能認定準則規定。... |
| BR Brazil | Restricted | MFDS summary (Korean): * Restrictions 【Field of application and/or use】 : (a) an oxidizer in hair dyes (b) straighteners hair products (c) facial sunless d) Other self-tanning * 제한 【사용 범위】 : (a) 산화형 염모제 (b) 헤어 스트레이트닝 제품 (c) 얼굴 자외선 차단 (d) 기타 셀프 태닝 제품 * Restrictions 【Maximum concentration permitted at final... |
| AR Argentina | Restricted | MFDS summary (Korean): * Restrictions 【Field of application and/or use】 : (a) an oxidizer in hair dyes (b) straighteners hair products (c) facial sunless d) Other self-tanning * 제한 【사용 범위】 : (a) 산화형 염모제 (b) 헤어 스트레이트닝 제품 (c) 얼굴 자외선 차단 (d) 기타 셀프 태닝 제품 * Restrictions 【Maximum concentration permitted at final... |
Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 17, 2026
SODIUM SULFITE 소듐설파이트
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) 0.67% · (b) 6.7% · (c) 0.45% · (d) 0.40%. 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: antioxidant, hair waving or straightening, reducing.
Korea's MFDS standard Korean name is 소듐설파이트.
10 products we checked list it, for example CLIO Double Longwear Cover Concealer, Peripera Double Longwear Cover Concealer, IOPE Expert Retinol RX™ 2% Reti-Jection Serum for Wrinkles.