At a glance
- CAS number
- 629-96-9
- INCI name
- Arachidyl Alcohol
- Function
- emollient, emulsifier, thickener, viscosity modifier
- Typical use level
- 0.5%–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
1-Eicosanol C20 Fatty Alcohol Eicosyl Alcohol n-Arachidyl Alcohol
Compatibility
Works well with:
Behenyl Alcohol Cetyl Alcohol Stearyl Alcohol Glyceryl Stearate Cetearyl Alcohol Shea Butter
Arachidyl Alcohol is broadly compatible with most emulsion components including other fatty alcohols, waxes, and emulsifiers. It is commonly used in combination with Behenyl Alcohol or Cetearyl Alcohol to build structure in emulsions. No significant incompatibilities with typical cosmetic co-ingredients are known.
Formulation notes
Arachidyl Alcohol is a long-chain C20 saturated fatty alcohol derived from arachidic acid, typically obtained from peanut oil or synthesized via hydrogenation. It functions primarily as a co-emulsifier, viscosity builder, and emollient, contributing a rich, non-greasy skin feel and stable wax-like structure in creams and lotions. Formulators value it for its ability to enhance cream consistency, improve spreadability, and stabilize oil-in-water emulsions.
Related ingredients
- Hydroxypropyl Starch PhosphateThickener
- Behenyl PEG/PPG-20/20 DimethiconeEmulsifier
- CarbomerThickener
- Cetyl PEG/PPG-10/1 DimethiconeEmulsifier
- GlycerinHumectant
- Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate CopolymerThickener