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STEARYL BENZOATE.

Valuable CAS 10578-34-4 / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT, SOLVENT

Stearyl Benzoate is a multi-functional ester primarily valued in skincare for its emollient properties, enhancing the skin barrier, and its role as a solvent, which aids in optimizing formula stability and texture. It is also recognized for imparting a smooth, silky after-feel to the skin.

Skin Conditioning Agent Emollient Solvent

Science

This ingredient functions by reinforcing the skin's natural lipid barrier. As an emollient, it deposits exogenous lipids into the stratum corneum, effectively filling microscopic gaps between corneocytes to reduce transepidermal water loss (TEWL) and improve overall hydration. It also possesses solvent capabilities, which are crucial for dissolving and uniformly dispersing other components within cosmetic formulations. Long-chain alkyl benzoates, including Stearyl Benzoate, are particularly noted for contributing a light conditioning effect and a luxurious, silky tactile sensation post-application.


Research

Low confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

No specific optimal pH range for the stability of Stearyl Benzoate has been identified in current research.


Safety

CIR Status
Safe as used
Sensitization risk Unknown

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that alkyl benzoates, including Stearyl Benzoate, are safe under present practices of use and concentration. This assessment is based on the 'maximum reported as used concentration,' rather than an explicitly defined maximum concentration limit for Stearyl Benzoate itself. No direct review by the SCCS has been identified. While related components like Benzoic Acid and Sodium Benzoate are Generally Recognized As Safe (GRAS) for food use by the FDA, a specific FDA cosmetic regulatory status for Stearyl Benzoate has not been established.


Your Skin

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

Our Assessment

Valuable

Stearyl Benzoate is a valuable ingredient, functioning effectively as an emollient to enhance skin barrier health and as a solvent for formulation stability, with its safety affirmed by the CIR.


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