Science
Mechanism of Action
This ingredient operates primarily as a non-ionic water-in-oil emulsifier, facilitating the stable integration of immiscible oil and water components within cosmetic formulations. On the skin, it serves as an emollient and conditioning agent, reducing transepidermal water loss to improve hydration and fortify the skin's protective lipid layer. It additionally contributes to desired product texture and emulsion viscosity.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 A 4-week study observed that a night cream containing 4% Methyl Glucose Sesquistearate was well-tolerated, with no reports of erythema or inflammatory lesions, indirectly supporting its use in skin-conditioning formulations.
Transparency
Dusting Analysis
As a foundational emulsifier and emollient, Methyl Glucose Sesquistearate is typically used at functional concentrations to achieve formulation stability and skin conditioning, and is not an ingredient commonly associated with 'dusting' claims.
The Formula
Formulation
Stability
Methyl Glucose Sesquistearate exhibits good inherent stability, although it is susceptible to hydrolysis under strong acidic or alkaline conditions. It provides effective emulsification and stability even at low concentrations, with enhanced long-term shelf life and viscosity observed when co-formulated with PEG-20 Methyl Glucose Sesquistearate.
Synergies
- PEG-20 Methyl Glucose Sesquistearate (for enhanced oil-in-water emulsion stability and viscosity)
Conflicts
- Strong oxidants (potential for combustion)
- Strong acids (leads to hydrolysis)
- Strong alkalis (leads to hydrolysis)
Safety
Safety Profile
The Cosmetics Ingredient Review (CIR) Panel has deemed Methyl Glucose Sesquistearate safe for use in skin and hair care products, including at concentrations up to 100%, based on research indicating no skin irritation. Its use is also permitted by regulatory bodies such as the European Cosmetics Regulation and acknowledged by the FDA through its Voluntary Cosmetic Registration Program (VCRP).
Your Skin
Skin Compatibility
Our Assessment
Verdict
Methyl Glucose Sesquistearate is a valuable multi-functional ingredient, offering robust emulsification, significant emollient and hydrating benefits, and high compatibility across all skin types, making it a reliable choice for diverse formulations.
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