Ingredient guide

Peg 4 Dilaurate

PEG-4 Dilaurate is a mild, synthetic emulsifier and surfactant commonly used in UK skincare and cosmetic formulas. It helps blend oil and water-based ingredients into smooth, stable creams, lotions and cleansers while giving products a light, non-greasy feel.

Peg 4 Dilaurate — PEG-4 Dilaurate is produced by reacting polyethylene glycol with lauric acid, a fatty a… | UK Lips ingredient guide

How it works in skincare

In cosmetic formulations PEG-4 Dilaurate works as an emulsifying agent by reducing surface tension between oil and water phases, allowing them to mix uniformly and remain stable over time. It is frequently found in facial cleansers, body washes, moisturisers and hair conditioners where it improves texture, aids even application and helps rinse off easily without leaving residue. Its mild nature makes it suitable for a wide range of leave-on and rinse-off products.

Key benefits

  • Helps create stable oil-in-water emulsions
  • Improves product texture and spreadability
  • Provides a light, non-greasy after-feel
  • Enhances rinseability of cleansers
  • Works as a mild surfactant and solubiliser
  • Contributes to smooth, even application

Best for

normal skin, combination skin, oily skin

Where it comes from

PEG-4 Dilaurate is produced by reacting polyethylene glycol with lauric acid, a fatty acid naturally derived from coconut oil or palm kernel oil.

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