PEG-45/Dodecyl Glycol Copolymer

PEG / Ethoxylated

What is PEG-45/Dodecyl Glycol Copolymer?

PEG-45/Dodecyl Glycol Copolymer is a synthetic, water-soluble ingredient formed by combining polyethylene glycol with dodecyl glycol units. It belongs to the class of ethoxylated copolymers commonly used in personal care products like shampoos, lotions, and cleansers. In formulations, it functions primarily as an emulsion stabilizer by creating a protective layer around oil droplets in water-based mixtures, preventing separation and enhancing product texture. As an emollient, it deposits a thin film on the skin surface to improve smoothness and reduce friction during application. Its amphiphilic nature allows it to solubilize hydrophobic ingredients, such as fragrances, into aqueous systems, aiding overall product stability and spreadability without altering the primary sensory profile.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 3 View on EWG →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Emulsion stabilizer
Improves emulsion robustness by preventing droplet coalescence and phase separation, often by thickening, structuring, or strengthening the interfacial layer.
Emollient
Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.

Benefits

Helps maintain emulsion integrity for consistent product texture.

Provides a smoothing effect on skin surfaces for better feel.

Supports incorporation of oil-soluble actives into water-based 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
People seeking stable, non-separating skincare emulsions.
Those preferring PEG-free formulations due to sensitivity concerns.
Individuals with dry skin desiring added slip and smoothness.
People avoiding ethoxylated ingredients altogether.
Users of products with fragrances or oils needing better blending.
Individuals with known reactions to synthetic polymers.

Safety Notes

  • Rated low hazard by EWG, indicating general safety in cosmetics.
  • Non-comedogenic, unlikely to clog pores.

Frequently Asked Questions about PEG-45/Dodecyl Glycol Copolymer

What does PEG-45/Dodecyl Glycol Copolymer do in products?

It stabilizes emulsions to prevent separation and acts as an emollient for smoother skin feel.

Is it safe for daily use?

Generally considered safe at typical cosmetic levels with low hazard rating.

Does it clog pores?

Rated non-comedogenic, so low risk for pore clogging.