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Moumoujus

GLYCERYL STEARATE/ACETATE.

Valuable CAS 27177-85-1 / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

Glyceryl Stearate/Acetate is a multi-functional ingredient that acts as both an emollient and an emulsifier. It supports skin hydration by forming a protective barrier and enhances product stability by blending oil and water phases.

Summary

Emollient Emulsifier Skin Conditioning Agent Viscosity Increasing Agent Emulsion Stabilizer Opacifier Humectant

Science

Mechanism of Action

This compound functions as an emollient by creating a thin, protective film on the skin's surface, effectively reducing transepidermal water loss and thereby maintaining optimal hydration. This action leads to lubrication, conditioning, and an overall smoother skin texture. Additionally, it serves as an emulsifier, crucial for stabilizing formulations by ensuring the harmonious dispersion of oil and water components. Its glycerol content contributes to its moisturizing properties, and it can also assist in maintaining the desired pH balance within a product.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Both
Optimal pH 5 – 9
0 7 14

Stability

For optimal integration and to prevent a grainy texture, Glyceryl Stearate/Acetate should be incorporated into the oil phase of formulations and heated to a temperature between 55°C and 70°C to ensure complete dissolution. It functions effectively as an emulsifier, emulsion stabilizer, thickener, and opacifier, and can be successfully combined with other emulsifiers to achieve stable lotion consistencies.

Synergies

  • Other emulsifiers

Safety

Safety Profile

CIR Status
Safe as used
Max tested
7%
Sensitization risk Low

The CIR Expert Panel has deemed Glyceryl Stearate/Acetate safe for cosmetic use within current practice and concentration limits. Historically, it has been used at concentrations up to 7% in hair tonics. While undiluted glyceryl monoesters may cause minor irritation, particularly on abraded skin, they are generally not irritating at concentrations typically found in cosmetic products. Related compounds are also affirmed as Generally Recognized As Safe (GRAS) by the FDA for certain food applications. It is not considered a sensitizer unless specific contaminants like residual rosin are present.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Glyceryl Stearate/Acetate is a valuable ingredient, providing dual benefits as an effective emollient for skin hydration and an efficient emulsifier for product stability across a broad range of cosmetic formulations.

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