Stearic Acid
✓ EU AllowedAlso known as: Stearic Acid
Identification
CAS Number 57-11-4
EINECS / EC 200-313-4
Chemical Name octadecanoic acid
IUPAC Name —
Formula C18H36O2
Mol. Weight 284.5 g/mol
SMILES CCCCCCCCCCCCCCCCCC(=O)O
InChIKey QIQXTHQIDYTFRH-UHFFFAOYSA-N
Function & Classification
Primary Function Emulsifying
Secondary Functions Thickener, Emollient
Origin Natural
Category Emulsifiers
Manufacturer Yiğitoğlu
EU Regulatory Status
Safety Profile
1 / 10
Fungal Acne Trigger May trigger or worsen fungal acne (feeds Malassezia yeast). Avoid if prone to fungal folliculitis.
Comedogenic Rating: 2/5
Low-moderate risk — use caution if acne-prone
Skin Type Compatibility
Acne-Prone ~ Use Caution
Fungal Acne ✕ May Trigger
Toxicology Profile
NOAEL 4000 mg/kg bw/day (oral, rat) CIR 1987 / EFSA
Sensitization Non-sensitizer
Genotoxicity Non-genotoxic
Phototoxicity Non-phototoxic
LD₅₀ Oral >10000 mg/kg (rat)
Skin Irritation (Draize) 0.0 / 4.0
Eye Irritation (Draize) 0.2 / 4.0
Formulation Guidelines
Benefits Pearlizing; thickening; cleansing boost
Suppliers & Documents
Yiğitoğlu 🇹🇷 Turkey
Documents