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AMMONIUM LAURETH-8 CARBOXYLATE.

Valuable CAS 41051-94-9 / CLEANSING, SURFACTANT - CLEANSING

A mild anionic surfactant that delivers effective cleansing while maintaining skin barrier integrity through its carboxylate structure. This ingredient provides long-lasting moisturization and smoothness without greasy residue, making it suitable across all skin types including sensitive skin.

Surfactant Cleansing agent Emulsifier

Science

Functions as a gentle cleansing agent by reducing water surface tension to effectively emulsify oils and impurities for removal. The carboxylate head group creates a larger, more hydrated molecular structure that prevents deep penetration into the stratum corneum, preserving natural skin barrier function compared to harsher sulfate-based surfactants.


Research

Medium confidence
Effective range 0.1–25%
Optimal

5%

Key findings

  1. 01 Demonstrates conditioning and moisturizing properties with sustained hydration effects in skin and hair formulations
  2. 02 Exhibits stable surfactant performance across varied pH ranges in keratinized surface treatments

Transparency

Not commonly dusted

Not typically subject to dusting practices as it serves essential cleansing functions with established safety profile


The Formula

Solubility
Water
Optimal pH 3 – 8
0 7 14

Stability

Maintains excellent stability in aqueous solutions within pH 3-8 range; acid conversion below pH 3 may reduce foaming properties and solubility

Synergies

  • Other anionic surfactants
  • Nonionic emulsifiers
  • Conditioning agents

Conflicts

  • Cationic surfactants
  • Strongly acidic environments below pH 3.0
  • Nitrosating agents

Safety

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

Primary safety consideration involves potential 1,4-dioxane contamination requiring levels below 1 ppm in finished products; non-sensitizing with irritation potential only at very high concentrations


Your Skin

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

Our Assessment

Valuable

A well-tolerated, mild surfactant that effectively balances cleansing efficacy with skin barrier preservation across all skin types.


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