What does Glyoxyloyl carbocysteine do?

Used in cosmetics as a hair waving or straightening agent and an antistatic agent.

Is Glyoxyloyl carbocysteine safe?

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

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Glyoxyloyl carbocysteine

CAS 1268868-51-4

Concern score

Not assessed — no hazard data yet.

Glyoxyloyl carbocysteine in plain language

What it is: Also known as Oxoacetamide carbocysteine · S-(Carboxymethyl)-N-(oxoacetyl)-L-cysteine · L-Cysteine, S-(carboxymethyl)-N-(1,2-dioxoethyl)- · L-Cysteine, S-(carboxymethyl)-N-(2-oxoacetyl)- · Occ 100 · Q27257378
Show all 7 names
UNII-3K6008UJ5J
What it does: Used in cosmetics as a hair waving or straightening agent and an antistatic agent.
Hair waving or straightening
Antistatic
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. Glyoxyloyl carbocysteine appears in these published regulatory listings.

Recorded in these product areas

Found in consumer products
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EUCosIngActiveGlyoxyloyl Carbocysteine is the organic compound that conforms to the formula:(structure)
- Glyoxyloyl Carbocysteine is the organic compound that conforms to the formula:(structure)Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 2 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Anti-static agent, Hair waving or straightening.
- EPA CPDat observed this chemical in 2 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Anti-static agent, Hair waving or straightening.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 Glyoxyloyl carbocysteine. 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 Glyoxyloyl carbocysteine 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 November 2016
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 Glyoxyloyl carbocysteine in a product composition. These are source records, not Greenveil catalog products.

Source records

Named organisations

Personal care

Typical roles

Hair waving or straighteningAntistatic

See products using Glyoxyloyl carbocysteine →