- beauty
Methionine sulfoximine
CAS 19764-34-2
Also registered as 1 other CAS number
15985-39-4
Concern score
Not assessed — no hazard data yet.
Methionine sulfoximine in plain language
Also known as L-Methionine sulfoximine · (2S)-2-Amino-4-(S-methanesulfonimidoyl)butanoic acid · (2S)-2-amino-4-(methylsulfonimidoyl)butanoic acid · Butanoic acid, 2-AMINO-4-(S-METHYLSULFONIMIDOYL)-, (2S)- · R-sulfoximine l-methionine-s · Methionine-dl-sulfoximine
Show all 15 names
Methionine-dl-sulfoximine, l- · (2S)-2-Amino-4-(S-methylsufonimidoyl)butanoic acid · (2S)-2-amino-4-(S-methylsulfonimidoyl)butanoic acid · 2-azaniumyl-4-(methylsulfonimidoyl)butanoate · Butanoic acid, 2-amino-4-(S-methylsufonimidoyl)-, (2S)- · Butanoic acid, 2-amino-4-(S-methylsulfonimidoyl)- · DLMethionineDLsulfoximine · Methionine-rs-sulfoximine, L- · DL MethionineDLsulfoximine
Used in cosmetics as a hair conditioner.
- Hair conditioning
- We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
What we know about this ingredient
EPA DSSTox provides the canonical identifier, structure, and synonym profile for this chemical.
Regulation
No restrictions found. Methionine sulfoximine appears in these published regulatory listings.
EUCosIngActiveMethionine Sulfoximine is the organic compound that conforms to the formula.
- Methionine Sulfoximine is the organic compound that conforms to the formula.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 Methionine sulfoximine. 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 Methionine sulfoximine yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Where this comes from
Reference links (1)
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
Fragrance avoidance
Nothing to weigh for this context yet.
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.