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ISOAMYL STEARATE.

Valuable CAS 627-88-3 / SKIN CONDITIONING, SKIN CONDITIONING - EMOLLIENT

Isoamyl Stearate is a lightweight ester that acts as an emollient and skin conditioning agent. It effectively softens and smooths the skin, aiding in moisture retention, while imparting a desirable non-greasy texture to cosmetic formulations.

emollient skin conditioning solvent binder

Science

This ingredient functions by creating a fine, lubricating film on the skin's surface, which diminishes trans-epidermal water loss and contributes to improved hydration. Beyond its direct skin benefits, Isoamyl Stearate significantly enhances the aesthetic and functional properties of products, boosting their spreadability and ensuring a refined, light skin feel. It additionally serves a dual role as a solvent for other components and a binder to stabilize formulations.


Research

Insufficient-data confidence
Effective range N/A
Optimal

N/A


Transparency

Not commonly dusted

The Formula

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

As an ester, Isoamyl Stearate maintains stability under typical cosmetic application conditions. However, it is prone to hydrolysis when exposed to strong acids or alkalies. It contributes to improved formulation consistency and overall product stability.

Conflicts

  • strong oxidizing materials
  • strong acids
  • alkalies
  • nitrates

Safety

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel concluded that alkyl esters, including stearates such as Isoamyl Stearate, are safe for use in cosmetic formulations under current practices, provided they are formulated to be non-irritating. No specific maximum concentration has been reported.


Your Skin

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

Our Assessment

Valuable

Isoamyl Stearate is a valuable emollient and skin conditioner, enhancing product texture and delivering a non-greasy feel with a strong safety profile suitable for all skin types.


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