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.
- beauty
DL-Lysine, compound with S-(carboxymethyl)-L-cysteine (1:1)
CAS 49673-81-6
Also registered as 1 other CAS number
79458-68-7
Concern score
Not assessed — no hazard data yet.
DL-Lysine, compound with S-(carboxymethyl)-L-cysteine (1:1) in plain language
On cosmetic ingredient lists it appears as “Lysine carboxymethyl cysteinate”.
Also known as Lysine carboxymethyl cysteinate
Used in cosmetics as a skin-conditioning agent and a hair waving or straightening agent.
- Skin conditioning
- Hair waving or straightening
- Conditioner
- We haven't assessed a concern score for this ingredient yet. It is listed for cosmetic use in the EU.
Regulation
No restrictions found. DL-Lysine, compound with S-(carboxymethyl)-L-cysteine (1:1) appears in these published regulatory listings.
- Found in consumer products
- Beauty
EUCosIngActiveListed in CosIng inventory for cosmetic use.
- Listed in CosIng inventory for cosmetic use.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 1 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Softener and conditioner, Hair waving or straightening.
- EPA CPDat observed this chemical in 1 composition records across product categories including Personal care. EPA CPDat classifies this chemical for functional uses including Softener and conditioner, Hair waving or straightening.Source →
Expert safety opinions
No expert opinion on file for DL-Lysine, compound with S-(carboxymethyl)-L-cysteine (1:1). 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 DL-Lysine, compound with S-(carboxymethyl)-L-cysteine (1:1) yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.
Suitability
Context-specific fit derived from published classifications and the current ingredient evidence profile.
No signal in this context
Where it has been recorded
How often EPA CPDat has listed DL-Lysine, compound with S-(carboxymethyl)-L-cysteine (1:1) in a product composition. These are source records, not Greenveil catalog products.
Source records
1
Named organisations
2
Personal care
Typical roles
Skin conditioningHair waving or straighteningConditioner
Found in these products
Cosmetic and personal-care products that list DL-Lysine, compound with S-(carboxymethyl)-L-cysteine (1:1) are shown first. Their ingredient lists include DL-Lysine, compound with S-(carboxymethyl)-L-cysteine (1:1); each product's own rating depends on its whole formula, so it is shown on the product page, not here.
