What does Calcium hydroxymethionine do?

Used in cosmetics as a skin-conditioning agent.

Is Calcium hydroxymethionine safe?

We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

beauty
cleaning

Calcium hydroxymethionine

CAS 14676-91-6

Also registered as 4 other CAS numbers

126688-38-8 · 1298120-30-5 · 922-50-9 · 4857-44-7

Calcium hydroxymethionine chemical structure

Concern score

Not assessed — no hazard data yet.

Calcium hydroxymethionine in plain language

What it is: Also known as Desmeninol calcium · Calcium bis · Methionine hydroxy analog calcium salt · 2-Hydroxy-4-(methylthio)-butanoic acid calcium salt (2:1) · Calcium bis(2-hydroxy-4-(methylthio)butyrate) · (±)-desmeninol calcium
Show all 32 names
Butanoic acid, 2-HYDROXY-4-(METHYLTHIO)-, calcium salt (2:1) · Calcium a-hydroxy-r-methylthiobutyrate, dl- · Calcium BIS((1)-2-HYDROXY-4-(METHYLTHIO)BUTYRATE) · Calcium desmeninol · Calcium dl-.alpha.-hydroxy-.gamma.-methylthiobutyrate · Calcium DL-2-HYDROXY-4-METHYLTHIOBUTYRATE · Dl-methioninehydroxyanalog calcium · Hydan (methionine hydroxy analog) · Methionine hydroxy analog-calcium · calcium bis(2-hydroxy-4-methylsulfanylbutanoate) · (+/-)-desmeninol calcium · 2-HYDROXY-4-(METHYLTHIO)BUTYRIC acid calcium · 2-Hydroxy-4-(methylthio)butyric acid calcium salt · Butyric acid, 2-HYDROXY-4-(METHYLTHIO)-, calcium salt (2:1) · C10H18CaO6S2 · Calcium 2-hydroxy-4-(methylthio)butanoate · Calcium 2-hydroxy-4-(methylthio)butyrate · Calcium DL-alpha-hydroxy-gamma-methylthiobutyrate · Calcium a-Hydroxy-?-Methylmercaptobutyrate · Calcium alpha-hydroxy-gamma-methylmercaptobutyrate · D,L-a-Hydroxymethionine Calcium · D-L-alpha-Hydroxylmethionine calcium · Mha · Methionine hydroxyl analog calcium salt · Oh-m · calcium;2-hydroxy-4-methylsulfanylbutanoate
What it does: Used in cosmetics as a skin-conditioning agent.
Skin conditioning
Conditioner
Is it a concern?: We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.

Regulation

No restrictions found. Calcium hydroxymethionine appears in these published regulatory listings.

Recorded in these product areas

Found in consumer products
Beauty
Cleaning

EUCosIngActiveListed in CosIng inventory for cosmetic use.
- Listed in CosIng inventory for cosmetic use.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 11 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Softener and conditioner.
- EPA CPDat observed this chemical in 11 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Softener and conditioner.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Calcium hydroxymethionine. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.

Evidence & sources

No graded research studies for Calcium hydroxymethionine yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

6 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EPA Chemical and Products Database
exposure · updated August 2013
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often EPA CPDat has listed Calcium hydroxymethionine in a product composition. These are source records, not Greenveil catalog products.

Source records

Named organisations

Personal care

Typical roles

Skin conditioningConditioner

See products using Calcium hydroxymethionine →