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ARACHIDYL ALCOHOL.

Valuable CAS 629-96-9 / EMULSION STABILISING, SKIN CONDITIONING - EMOLLIENT, VISCOSITY CONTROLLING

A high-purity C20 fatty alcohol that serves as a sophisticated emollient and structural stabilizer in precision skincare. It provides a luxurious, non-greasy finish while reinforcing the skin's natural moisture barrier through its unique lipid-mimicking properties.

emollient viscosity controlling emulsion stabilising

Science

Arachidyl Alcohol functions by forming a breathable, ultra-thin occlusive film on the epidermal surface, which significantly mitigates transepidermal water loss (TEWL). In specific formulations, it facilitates the creation of liquid crystal structures that mirror the skin's natural lipid bilayer, thereby enhancing the delivery of active ingredients and improving long-term barrier resilience.


Research

High confidence
Effective range 1–5%
Optimal

5%

Key findings

  1. 01 A 4-week clinical study involving 21 volunteers with sensitive and acne-prone skin demonstrated that a 5% concentration was entirely non-comedogenic and showed high skin tolerance with 0% incidence of irritation.

Transparency

Not commonly dusted
Min. effective
1%
Red flag below
0.5%

As a structural emollient and co-emulsifier, Arachidyl Alcohol is typically used at concentrations between 1% and 5% to achieve its barrier-reinforcing effects. Concentrations below 0.5% in an emulsion may indicate its use as a secondary stabilizer rather than a primary skin-conditioning agent.


The Formula

Solubility
Oil
Optimal pH 3 – 11
0 7 14

Stability

Highly stable and resistant to oxidation; it maintains structural integrity across a broad pH spectrum and is frequently used to increase viscosity without adding heaviness.

Synergies

  • Arachidyl Glucoside
  • Behenyl Alcohol
  • Ceramides

Safety

CIR Status
Safe as used
Max tested
50%
Pregnancy
Safe
Sensitization risk Low

Classified as a long-chain fatty alcohol, it is recognized for its high safety profile and is distinct from drying alcohols like denatured ethanol.


Your Skin

Yes Normal
Yes Dry
Yes Oily
Yes Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Valuable

An essential ingredient for creating stable, high-performance emulsions that reinforce the skin barrier without clogging pores or causing irritation.


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