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PEG-10 PROPYLENE GLYCOL.

Valuable CAS 9003-11-6 / HUMECTANT, SOLVENT

PEG-10 Propylene Glycol is a multi-functional ingredient that significantly enhances skin hydration as both a humectant and an emollient. It also serves as an effective solvent in cosmetic formulations, facilitating the optimal dissolution of other components. Furthermore, it aids in cleaning by assisting water in mixing with oils and dirt for easier removal.

Summary

moisturizer/humectant solvent emollient cleansing agent

Science

Mechanism of Action

Operating as a humectant, PEG-10 Propylene Glycol actively draws moisture from the surrounding environment to the skin's surface, forming hydrogen bonds with water molecules for sustained hydration and improved suppleness. It also functions as an emollient, establishing a protective barrier that minimizes trans-epidermal water loss. Furthermore, its solvent properties enable it to dissolve various substances within cosmetic formulations, and as a polyethylene glycol ether, it assists in emulsifying oils and dirt for efficient cleansing.

Research

Clinical Evidence

Medium confidence
Effective range ≤10%
Optimal

10%

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

This ingredient demonstrates robust stability across a wide range of conditions, tolerating heat, acidic, and alkaline environments. It is also noted for its microbiological stability, often negating the need for additional preservatives in formulations.

Conflicts

  • diethyl ether
  • hexane
  • starch-based thickeners (may cause loss of viscosity)

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel has confirmed PEG-10 Propylene Glycol as safe for use in cosmetics. Notably, a previous caveat against its use on damaged skin was removed in 2010 following re-review, indicating no safety concern for such applications. While potential manufacturing impurities like 1,4-dioxane and ethylene oxide are acknowledged for PEGs, these can be effectively managed through stringent purification processes. The FDA also recognizes related polyethylene glycol compounds as safe for specific food uses.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
No Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Valuable

PEG-10 Propylene Glycol is a valuable multi-functional ingredient, offering significant hydration, emollient benefits, and solvent capabilities with a favorable safety and compatibility profile across various skin types.

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