PEG-5 Pentaerythrityl Ether

PEG / Ethoxylated

What is PEG-5 Pentaerythrityl Ether?

PEG-5 Pentaerythrityl Ether is a polyether compound created by ethoxylating pentaerythritol, a tetrafunctional alcohol derived from acetaldehyde. The 'PEG-5' indicates an average of five ethylene oxide units attached, forming a water-soluble, low-molecular-weight polymer. Primarily used in leave-on skincare products like moisturizers, serums, and conditioners, it serves dual roles in formulations. As a humectant, it binds atmospheric water to the skin's surface layers, supporting moisture retention. As an emollient, it reduces friction between skin cells, promoting a silky feel and enhancing product application. Its hydrophilic nature allows compatibility with aqueous and emulsified systems, aiding in stable, hydrating textures without greasiness.

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:

Humectant
Attracts and holds water in the stratum corneum, boosting hydration and plumpness; commonly used in moisturizers, cleansers, and hair conditioners.
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

Enhances skin hydration by attracting and retaining water.

Softens skin surface for improved smoothness and comfort.

Facilitates even product distribution with a non-greasy finish.

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 with dry or dehydrated skin seeking moisture boost.
People with known sensitivity to polyethylene glycol derivatives.
People using daily moisturizers for supple texture.
Individuals wary of ethoxylated ingredients due to potential impurities.
Those preferring lightweight hydration in multi-tasking formulas.
Those preferring completely natural or mineral-only skincare routines.

Safety Notes

  • Rated low hazard by independent assessments when used as directed.
  • Opt for products from brands ensuring purification from contaminants.

Frequently Asked Questions about PEG-5 Pentaerythrityl Ether

What does PEG-5 Pentaerythrityl Ether do in products?

It acts as a humectant to draw in moisture and an emollient to soften skin.

Is it suitable for sensitive skin?

Generally low irritation potential, but patch test if sensitive to synthetics.

Why is it used in moisturizers?

Supports water retention and improves spreadability for better hydration.