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Moumoujus

GLYCERETH-8.

Insufficient Data CAS 31694-55-0 (generic) / HUMECTANT, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

GLYCERETH-8 is a synthetic glycerin derivative that functions primarily as a humectant and emollient. It effectively draws and retains moisture in the skin, contributing to enhanced hydration and a smoother skin texture, while also playing a role in modulating product consistency.

Summary

moisturizer/humectant emollient viscosity controlling

Science

Mechanism of Action

As a highly effective humectant, GLYCERETH-8 actively binds water molecules within cosmetic formulations, thereby helping to maintain optimal moisture levels in the skin. It also functions as a skin conditioning emollient, contributing to the softening and smoothing of the skin's surface. Furthermore, it serves as a versatile viscosity controlling agent, allowing formulators to precisely adjust the thickness or fluidity of cosmetic products.

Research

Clinical Evidence

Low confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH N/A
0 7 14

Stability

GLYCERETH-8 is a polyethylene glycol (PEG) ether of glycerin. Typically, PEGs with a mean molar mass up to 600 g/mol are liquid, and GLYCERETH-8 generally follows this consistency. Its water solubility and hygroscopicity tend to decrease as the mean molar mass of polyethylene glycols increases due to a higher degree of polymerization.

Safety

Safety Profile

CIR Status
Insufficient data
Sensitization risk Unknown

The Cosmetic Ingredient Review (CIR) Panel determined that data for Glycerin Ethoxylates, including GLYCERETH-8, was insufficient to conclude safety in initial reviews in 2019. Concerns were raised regarding potential incidental inhalation exposure, particularly from spray applications (e.g., Glycereth-26 at 1%), and the need for detailed experimental protocols for Human Repeated Insult Patch Tests (HRIPT). As of November 2020, a final safety determination for this group was still pending. While glycerin itself is deemed safe by the FDA, specific FDA status for GLYCERETH-8 is not detailed. The EWG Skin Deep database allows products with 'Glycereth 8 Esters' under its VERIFIED program, but with noted restrictions and warnings concerning inhalable forms and potential contamination from toxic impurities.

Your Skin

Skin Compatibility

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Unknown
Comedogenicity Unknown

Our Assessment

Verdict

Insufficient Data

While GLYCERETH-8 offers beneficial humectant, emollient, and viscosity control properties, its safety rating by the CIR Panel remains 'insufficient data', necessitating careful consideration and further conclusive research, especially in formulations with potential inhalation exposure.

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