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Moumoujus

ARACHIDETH-22.

Valuable CAS 26636-39-5 / SURFACTANT - CLEANSING, SURFACTANT - EMULSIFYING

A high-performance non-ionic emulsifier and surfactant derived from a 20-carbon fatty alcohol chain. It serves as a structural stabilizer, ensuring that complex oil-and-water formulations maintain a refined, consistent texture without phase separation.

Summary

Emulsifying Surfactant Cleansing Stabilizing

Science

Mechanism of Action

Arachideth-22 functions as an oil-in-water (O/W) stabilizer by reducing interfacial tension. Its long lipophilic arachidyl tail (C20) anchors firmly into oil droplets, while its hydrophilic PEG-22 chain extends into the aqueous phase, creating a robust micellar network that prevents coalescence.

Research

Clinical Evidence

High confidence
Effective range 1–10%
Optimal

2%

Key findings

  1. 01 A 2012 safety evaluation by the CIR Expert Panel confirmed that Arachideths are non-sensitizing and safe in leave-on formulations when manufactured to minimize irritation potential.

Transparency

Dusting Analysis

Not commonly dusted
Min. effective
0.5%

As a functional excipient rather than a bioactive marketing ingredient, Arachideth-22 is typically used at physiologically relevant levels required to maintain emulsion stability.

The Formula

Formulation

Solubility
Water
Optimal pH 3 – 11
0 7 14

Stability

Exhibits exceptional chemical stability across broad temperature and pH ranges; it is inherently resistant to hydrolysis due to its non-ionic nature.

Synergies

  • Compatible with a wide array of cosmetic actives including electrolytes and vitamins.

Conflicts

  • May attenuate the efficacy of phenolic preservatives like parabens at very high concentrations due to micellar encapsulation.

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Pregnancy
Safe
Sensitization risk Low

Safe for topical use within standard industry concentrations (up to 10%) in leave-on products.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A highly stable and skin-safe emulsifier essential for creating elegant, reliable oil-in-water textures across all skin types.

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