PEG-15/Lauryl Dimethicone Crosspolymer

What is PEG-15/Lauryl Dimethicone Crosspolymer?

PEG-15/Lauryl Dimethicone Crosspolymer is a lab-made ingredient created by linking polyethylene glycol units (PEG-15) with lauryl dimethicone, a chain of silicone molecules. This forms a hydrophilic-silicone hybrid polymer commonly found in cosmetics such as serums, moisturizers, and makeup primers that incorporate silicone phases. It works by boosting thickness in water-based formulas, enabling the formation of clear, stable gels and emulsions where water mixes seamlessly with silicone oils. This functionality prevents phase separation, enhances spreadability for a silky feel, and supports even distribution of active components without compromising product integrity during storage or application.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 1-4 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.
Stabilising
Improves physical and/or chemical stability (e.g., preventing separation, precipitation, or degradation) to keep performance consistent over shelf life.

Benefits

Provides adjustable thickness for improved product handling and dispensing.

Maintains emulsion integrity to ensure consistent performance over time.

Enhances texture for smoother, more user-friendly application in various formulas.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
Individuals using silicone-enhanced serums or gels for daily routines.
Those with rare silicone sensitivities.
People seeking stable formulations that resist separation.
Users preferring entirely natural or PEG-free products.
All skin types preferring lightweight, even-spreading textures.
Individuals sensitive to ethoxylated ingredients.

Safety Notes

  • Considered low hazard in cosmetic concentrations per safety assessments.
  • Non-comedogenic, unlikely to clog pores.

Frequently Asked Questions about PEG-15/Lauryl Dimethicone Crosspolymer

What does PEG-15/Lauryl Dimethicone Crosspolymer do in products?

It thickens formulas, stabilizes emulsions, and improves texture for better usability.

Is it safe for sensitive skin?

It shows low irritation potential in safety evaluations, suitable for most users.

Does it clog pores?

Rated non-comedogenic, unlikely to contribute to breakouts.