Glycereth-7 Trimethyl Ether

What is Glycereth-7 Trimethyl Ether?

Glycereth-7 Trimethyl Ether is a synthetic polyol ether derived from glycerol through ethoxylation with seven ethylene oxide units and subsequent trimethylation of hydroxyl groups. This modification enhances its water solubility, mildness, and sensory properties. Primarily featured in leave-on skincare like lotions, creams, and serums, it serves multiple roles in formulations. As an emollient, it spreads easily over the skin, filling microscopic gaps to create a smooth, velvety finish and minimize water evaporation. In its humectant capacity, it binds moisture from the environment to the upper skin layers, promoting plumpness. As a skin conditioning agent, it helps preserve the skin's natural suppleness and resilience. Its clear, non-sticky profile makes it ideal for lightweight, fast-absorbing products without heaviness.

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.

Humectant

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

Skin conditioning agent

Maintains skin softness, smoothness, and flexibility.

Benefits

Delivers emolliency to smooth rough skin surfaces and enhance product spreadability.

Supports skin hydration by pulling water into the outer layers.

Maintains skin's softness and flexibility for a conditioned feel.

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 dehydrated skin needing gentle moisture.	Persons with allergies to polyethylene glycol derivatives.
Individuals seeking non-greasy textures in daily moisturizers.	Users preferring fully natural or plant-based ingredients only.
Those with normal to combination skin for lightweight conditioning.	Individuals sensitive to synthetic humectants in rare cases.

Safety Notes

Considered low hazard with minimal irritation potential in cosmetic use.
Non-comedogenic, unlikely to clog pores.

Frequently Asked Questions about Glycereth-7 Trimethyl Ether

What does Glycereth-7 Trimethyl Ether do in skincare?

It acts as an emollient to smooth skin, humectant to attract moisture, and conditioner for softness.

Is it safe for sensitive skin?

It has low irritation potential suitable for most skin types, including sensitive.

Does it clog pores?

No, it carries a non-comedogenic rating and supports clear skin.