Laureth-21 is a high-ethoxylated non-ionic surfactant and emulsifier. It is valued for its strong emulsifying and solubilizing capabilities, particularly in creating stable oil-in-water emulsions and clear formulations. This waxy solid or viscous liquid is commonly used in facial cleansers, shower gels, shampoos, makeup removers, and light lotions where high water solubility and mildness are required.
Products with LAURETH-21
With samples available
Koboguard® 50A
by Kobo Products
WSJ10CB
by Kobo Products
What is LAURETH-21 used for?
- Emulsifying: Stabilizes oil-in-water emulsions with a light, elegant texture. Frequently used in lotions, creams, and cleansing milks.
- Surfactant / Cleansing: Provides gentle cleansing and helps disperse oils. Common in facial washes and body cleansers.
- Solubilizing: Dissolves fragrances, essential oils, and lipophilic actives in aqueous systems. Ideal for clear toners, micellar waters, and serums.
Origin
Laureth-21 is produced by the controlled ethoxylation of lauryl alcohol (derived from coconut or palm kernel oil) with approximately 21 moles of ethylene oxide. The reaction yields a high-HLB (hydrophilic-lipophilic balance) non-ionic surfactant with excellent water solubility.
What does LAURETH-21 do in a formulation?
CLEANSING|
SURFACTANT|
EMULSIFYINGSafety Profile
Laureth-21 is considered safe for cosmetic use per the CIR Expert Panel assessment of laureth surfactants. It has a low to moderate hazard rating from EWG (typically 1-3), mainly due to potential ethoxylation impurities (1,4-dioxane and residual ethylene oxide are minimized in modern grades). It is generally mild and well-tolerated at typical use levels (0.5-5%).
LAURETH-21 alternatives
LAURETH-21 technical profile
| Property | Values |
| Boiling Point | >250°C |
| Melting Point | 30°C - 40°C |
| pH | 5.0 - 7.5 (5% aqueous) |
| Solubility | Highly soluble in water |
| Viscosity | Low to medium |
Formulations with LAURETH-21
No data available
By Application
No data available