Glycereth-7

What is Glycereth-7?

Glycereth-7 is a synthetic polyether compound created by ethoxylating glycerol with seven units of ethylene oxide, resulting in a clear, water-soluble liquid. It belongs to the family of PEG ethers and is widely incorporated into personal care products like moisturizers, serums, cleansers, shampoos, and conditioners. In formulations, it functions by binding water molecules to maintain skin hydration levels and by modifying the product's flow properties for better application and stability. This dual action supports even distribution of active ingredients while contributing to a smooth, non-greasy feel. Its low molecular weight facilitates quick penetration without leaving residue, making it suitable for daily use across various product textures from lightweight gels to thicker creams.

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

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.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.

Benefits

Boosts skin hydration by drawing moisture into the upper skin layers.

Enhances product spreadability and consistency for user-friendly application.

Non-comedogenic, helping maintain clear pores in moisturizing 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
Individuals with dry or dehydrated skin seeking lightweight moisture.
Those with known sensitivity to polyethylene glycol derivatives.
Users of cleansers and lotions wanting improved texture and feel.
Individuals experiencing rare contact dermatitis from ethoxylated compounds.
People with normal to oily skin types preferring non-greasy hydrators.
People preferring completely natural or PEG-free formulations.

Safety Notes

  • Rated low hazard by authoritative cosmetic safety assessments.
  • Demonstrates minimal irritation potential in standard cosmetic concentrations.

Frequently Asked Questions about Glycereth-7

What does Glycereth-7 do in skincare?

It acts as a humectant to attract water for hydration and controls viscosity for smoother product texture.

Is Glycereth-7 safe for sensitive skin?

It has low irritation potential and is considered safe in typical cosmetic amounts by safety experts.

Can Glycereth-7 cause acne?

No, it carries a zero comedogenic rating, making it suitable for acne-prone skin.