Isostearyl Glyceryl Ether

What is Isostearyl Glyceryl Ether?

Isostearyl Glyceryl Ether is a synthetic glyceryl ether created by linking glycerol with isostearyl alcohol, a branched fatty alcohol often sourced from vegetable oils. This gives it a structure akin to skin's natural lipids, promoting good compatibility. Primarily used in skincare as an emollient within moisturizers, lotions, serums, and color cosmetics. It functions by lowering surface tension for easier product application, creating a flexible, non-occlusive film that softens irregularities and curbs water evaporation from the skin. Its branched chain ensures a dry, velvety after-feel rather than oily residue, making it suitable for modern, fast-absorbing formulas. Stable across pH ranges, it blends well with actives and thickeners to boost overall product performance and user experience.

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

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

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.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.

Benefits

Softens and smooths skin texture for a supple feel.

Boosts product glide and even distribution during application.

Supports skin's moisture barrier to maintain hydration levels.

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 with dry or rough skin needing gentle softening.
Those with allergies to glyceryl ethers or similar lipids.
Individuals seeking lightweight, non-greasy hydration in routines.
People who react to branched-chain emollients.
Acne-prone users looking for low pore-clogging options.
Highly reactive skin types without prior patch testing.

Safety Notes

  • Low overall hazard profile suitable for cosmetic use.
  • Non-comedogenic nature minimizes pore blockage risk.

Frequently Asked Questions about Isostearyl Glyceryl Ether

Is Isostearyl Glyceryl Ether comedogenic?

No, it carries a rating of 0, making it unlikely to clog pores.

Safe for daily skincare use?

Yes, with a low hazard rating from 1 to 1, suitable in cosmetics.

What skin types suit it best?

Ideal for dry, sensitive, or acne-prone skin due to its softening and conditioning properties.