At a glance
- CAS number
- 11099-07-3
- INCI name
- Glyceryl Stearate
- Function
- emulsifier, emollient, thickener, surfactant
- Typical use level
- 1%–5%
- Solubility
- oil
- Stable pH
- 4–8
CAS number and synonyms are sourced from PubChem. Function, usage levels, pH and compatibility are AI-assisted formulation guidance — verify against your supplier's technical data sheet and applicable regulations before use.
Also known as
RefChem:1085937 Glyceryl Stearate Octadecanoic acid, ester with 1,2,3-propanetriol Stearine glycerol;stearic acid Stearicdiglyceride
Compatibility
Works well with:
Cetearyl Alcohol Stearic Acid Cetyl Alcohol PEG-100 Stearate Shea Butter Dimethicone Niacinamide Glycerin Hyaluronic Acid Tocopheryl Acetate
Use caution with:
High-concentration L-Ascorbic Acid Strong Acids Strong Alkalis High Electrolyte Concentrations
Glyceryl Stearate is a non-ionic emulsifier and is generally very compatible with most cosmetic ingredients; it works synergistically with co-emulsifiers like PEG-100 Stearate and fatty alcohols to stabilize O/W emulsions. Strongly acidic environments (pH below 4) or high alkalinity can hydrolyze the ester bond, reducing efficacy. High electrolyte concentrations may disrupt emulsion stability.
Formulation notes
Glyceryl Stearate (CAS 11099-07-3) is the monoester of glycerin and stearic acid; it is self-emulsifying only when combined with a co-emulsifier. It is considered safe and well-tolerated; no specific regulatory concentration restrictions in major markets (EU, US). Often used in conjunction with PEG-100 Stearate as a pre-blended SE (self-emulsifying) grade. Add to the oil phase during formulation, typically at 65–75°C.
Related ingredients
- Behenyl PEG/PPG-20/20 DimethiconeEmulsifier
- LecithinEmulsifier
- Arachidyl AlcoholEmollient
- Behenyl AlcoholEmollient
- Hydroxypropyl Starch PhosphateThickener
- Stearyl AlcoholEmollient