Arginine
✓ EU AllowedIdentification
CAS Number 74-79-3
EINECS / EC 200-811-1
CosIng Ref 74314
Chemical Name (2S)-2-amino-5-(diaminomethylideneamino)pentanoic acid
IUPAC Name —
Formula C6H14N4O2
Mol. Weight 174.2 g/mol
SMILES C(CC(C(=O)O)N)CN=C(N)N
InChIKey ODKSFYDXXFIFQN-BYPYZUCNSA-N
Function & Classification
Primary Function skin-identical ingredient Official CosIng Information All Functions: antistatic
Secondary Functions hair conditioning, masking, skin conditioning CAS #: 74-79-3, 7200-2
Origin Synthetic
Category Amino Acids
Manufacturer Eigenmann & Veronelli S.p.A.
EU Regulatory Status
Safety Profile
1 / 10
Comedogenic Rating: 0/5
Will not clog pores — safe for acne-prone skin
Skin Type Compatibility
Acne-Prone ✓ Safe
Dry Skin ✓ Beneficial
Fungal Acne Safe ✓ Safe
Toxicology Profile
NOAEL 2000 mg/kg bw/day (oral, rat) CIR 2013 / FDA GRAS
Sensitization Non-sensitizer
Genotoxicity Non-genotoxic
Phototoxicity Non-phototoxic
LD₅₀ Oral >5000 mg/kg (rat)
Skin Irritation (Draize) 0.0 / 4.0
Eye Irritation (Draize) 0.2 / 4.0
Formulation Guidelines
Benefits skin-identical ingredient Official CosIng Information All Functions: antistatic, hair conditioning, masking, skin conditioning CAS #: 74-79-3 / 7200-2, Moisturizing, Hydrating
Suppliers & Documents
Eigenmann & Veronelli S.p.A. 🇮🇹 Italy
Eigenmann & Veronelli S.p.A. 🇮🇹 Italy
Documents