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Sodium Hydroxymethylglycinate

Korean: 소듐하이드록시메칠글리시네이트 · CAS 70161-44-3 · Functions: hair conditioning, preservative

KR South Korea (MFDS)

Restricted MFDS restricted ingredients

Maximum: 0.5%

Conditions (official MFDS text, Korean):
* 배합한도 : 0.5%

Source: MFDS — cosmetic ingredient use restrictions · checked Oct 16, 2026

EU European Union (CosIng)

Prohibited Annex II/1669

Conditions: Sodium N-(hydroxymethyl)glycinate; [formaldehyde released from sodium N-(hydroxymethyl)glycinate] if the maximum theoretical concentration of releasable formaldehyde, irrespective of the source, in the mixture as placed on the market is ≥ 0,1 % w/w

Source: EU CosIng — Annex II · checked Oct 16, 2026

Approved preservative Annex V/51

Maximum: 0.5%

Conditions: Not to be used if the maximum theoretical concentration of releasable formaldehyde, irrespective of the source, if the mixture as placed on the market is ≥ 0,1 % w/w

Source: EU CosIng — Annex V · checked Oct 16, 2026

US United States (FDA)

Banned in some U.S. states WA-TFCA

Conditions: Washington: Toxic-Free Cosmetics Act (Substitute House Bill 1047, Chapter 455, Laws of 2023) and Cosmetic Products Restrictions Rule (ch. 173-339 WAC, WSR 25-18-057, eff. 2025-09-28) · RCW 70A.560.005-.900 (2023 c 455); WAC 173-339-110 · From 2027-01-01 · intentionally added formaldehyde releaser (WAC 173-339-110(2)(b) table), incl. aliases of name and CAS RN; existing in-state retailer stock may be sold until 2028-01-01 (Ecology: until 2027-12-31)

Source: Washington — Toxic-Free Cosmetics Act (Substitute House Bill 1047, Chapter 455, Laws of 2023) · checked Oct 16, 2026

Banned in some U.S. states OR-SB546

Conditions: Oregon: Toxic-Free Cosmetics Act (SB 546, Or. Laws 2023 ch. 575) · ORS 431A.345 · From 2027-01-01 · intentionally added (our mapping from Washington's named list) · Matched by our INCI mapping of a substance class

Source: Oregon — Toxic-Free Cosmetics Act (SB 546, Or. Laws 2023 ch. 575) · checked Oct 16, 2026

Other markets

How Sodium Hydroxymethylglycinate 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.

MarketStatusConditions
CN ChinaRestricted MFDS summary (Korean): * 【화장품 중 최대사용농도】 배합한도 (일반) : 0.5%
AS ASEAN (10 countries)Restricted MFDS summary (Korean): * 【Restrictions】 Maximum authorised concentration in the finished cosmetic product : 0.5% * 제한 【완제품에서 허용된 최대 농도】 : 0.5% * 【Restrictions】 Other limitations and requirements : Not to be used if the maximum theoretical concentration of releasable formaldehyde, irrespective of the source, if the...
TW TaiwanRestricted 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 BrazilRestricted MFDS summary (Korean): * Restrictions 【Maximum concentration permitted at final product】 : 0.5% * 제한 【완제품에서 허용된 최대 농도】 : 0.5%
AR ArgentinaRestricted MFDS summary (Korean): * Restrictions 【Maximum concentration permitted at final product】 : 0.5% * 제한 【완제품에서 허용된 최대 농도】 : 0.5%

Source: MFDS cosmetic ingredient use restrictions — overseas regulations · checked Oct 16, 2026

Also listed as

SODIUM HYDROXYMETHYLGLYCINATE 소듐하이드록시메칠글리시네이트

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.

Frequently asked questions

Is Sodium Hydroxymethylglycinate banned in the European Union?

In the EU's CosIng records it is listed as “Prohibited” (EU CosIng — Annex II).

Is Sodium Hydroxymethylglycinate banned in South Korea?

In Korea's MFDS records it is listed as “Restricted” (MFDS — cosmetic ingredient use restrictions). The maximum allowed is 0.5%. A restricted ingredient is allowed within the stated conditions.

Is Sodium Hydroxymethylglycinate allowed in cosmetics in the U.S.?

In the FDA's records it is listed as “Banned in some U.S. states” (Washington — Toxic-Free Cosmetics Act (Substitute House Bill 1047, Chapter 455, Laws of 2023)).

What is Sodium Hydroxymethylglycinate used for in cosmetics?

The EU's CosIng inventory lists its functions as: hair conditioning, preservative.

What is Sodium Hydroxymethylglycinate called on Korean labels?

Korea's MFDS standard Korean name is 소듐하이드록시메칠글리시네이트.

What is the CAS number of Sodium Hydroxymethylglycinate?

CAS 70161-44-3 (from official records).

Ask KBeauty Verified™
KBeauty Verified™ — K-beauty checked against official records from Korea, the EU and the U.S.
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