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Laneth-50
AKA “PEG-50 Lanolin, Polyethylene glycol 50 lanolin ether”
Synthetic
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Ingredient Facts
Laneth-50
AKA: PEG-50 Lanolin, Polyethylene glycol 50 lanolin ether
Synthetic · Cleansing | Surfactant - Cleansing | Surfactant - Emulsifying | Viscosity Controlling · EWG: 4
Plant-Derived
Cleanser
Emulsifier
Barrier Lipid
Synthetic
Clean
Gentle cleanser derived from lanolin that helps remove oil and dirt while keeping products smooth and easy to apply.
CAS #
61791-20-6
Form
Liquid
Plant-Derived
Synthetic. Laneth-50 is derived from lanolin, a waxy substance obtained from sheep's wool, chemically modified with ethylene oxide. It is produced through ethoxylation of lanolin, adding polyethylene glycol chains to increase water solubility and surfactant properties.
Function
Cleansing | Surfactant - Cleansing | Surfactant - Emulsifying | Viscosity Controlling
Benefits
Removes Impurities
Cleansing Surfactant
Emulsifier
Controls Viscosity
Traditional Use
A highly ethoxylated synthetic lanolin surfactant developed in the mid-20th century. The 50 ethylene oxide units create a strongly hydrophilic compound used for specific cosmetic formulation requirements.
Skin Types
all-skin-types
Best For
Target
General
Melanin-Rich Skin
Suitable
Pregnancy Safe
Yes
Allergen Warning
⚠️ Lanolin (Wool)
Allergen Warning
⚠️ Lanolin (Wool)
EWG Score4
CIR Safety Findings
medical-approval, all-shades-safe, Not a Sensitizer
Concentration Guide
Industry reports use up to 10.0% across all product types. Source: CIR Safety Assessment (CIR Seq 581).
Regulatory Status
USA✔ permitted
EU⚠ restricted
JAPAN⚠ restricted
CANADA⚠ restricted
Verified Feb 2026
Data: CosIng · EWG · CIR