Glycereth-18
What is Glycereth-18?
Glycereth-18 is a synthetic polyether compound formed by reacting glycerin with 18 units of ethylene oxide, creating a water-soluble molecule with hydrophilic properties. In cosmetics, it belongs to the humectant and surfactant categories, commonly appearing in lotions, creams, serums, and cleansers. It functions by drawing moisture from the environment into the skin, aiding hydration, while also emulsifying oil and water phases to create stable formulations. Additionally, it solubilizes lipophilic ingredients like fragrances and oils into aqueous bases, improving product clarity and efficacy. This versatile ingredient enhances spreadability and texture without greasiness, supporting even application across various skin types.
Benefits
Attracts and retains moisture to support skin hydration.
Stabilizes emulsions for smoother product consistency.
Solubilizes oils and fragrances for clear, effective 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 with normal to dry skin seeking hydration. | Those with known allergies to polyethylene glycol derivatives. |
| Users of lightweight lotions and serums. | People sensitive to ethoxylated ingredients. |
| Individuals preferring non-comedogenic moisturizing aids. | Individuals avoiding synthetic surfactants. |
Safety Notes
- Rated low hazard by EWG with minimal risk of irritation.
- Deemed safe for cosmetic use by cosmetic ingredient review panels.
Frequently Asked Questions about Glycereth-18
What is Glycereth-18?
A glycerin-based polyether used as a humectant, emulsifier, and solubilizer in skincare.
Is Glycereth-18 safe for daily use?
Yes, it has a low safety rating and is suitable for most cosmetic applications.
Does Glycereth-18 clog pores?
It has a comedogenic rating of 0, indicating low risk of pore clogging.