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Moumoujus

AMMONIUM CHLORIDE.

Optional CAS 12125-02-9 / BUFFERING, FRAGRANCE, VISCOSITY CONTROLLING

Ammonium chloride is a multifunctional salt that serves as both a viscosity controller and pH buffer in skincare formulations. This water-soluble ingredient works by modifying surfactant structures to enhance product texture while maintaining optimal acidity levels. Though primarily used for formulation stability, research indicates it may influence melanin production pathways at the cellular level.

Summary

Viscosity controlling pH buffering Formulation stabilizing

Science

Mechanism of Action

Functions by altering micellar structures of surfactants to increase viscosity in aqueous systems while acting as a pH-adjusting buffer. At the cellular level, it can elevate intracellular pH, potentially enhancing tyrosinase enzyme activity involved in melanin synthesis.

Research

Clinical Evidence

Medium confidence
Effective range 5–20%
Optimal

15%

Key findings

  1. 01 Enhanced morphological differentiation and increased pigmentation in human retinal pigment epithelium cells through tyrosinase induction

Transparency

Dusting Analysis

Not commonly dusted

Primarily used as a functional ingredient for viscosity and pH control rather than marketing appeal, making dusting unlikely.

The Formula

Formulation

Solubility
Water
Optimal pH 4 – 6
0 7 14

Stability

Highly stable in solid form but hygroscopic requiring moisture protection. In solution, exhibits mild acidity and can slowly release hydrogen chloride.

Synergies

  • Aluminum chloride in antiperspirant applications

Conflicts

  • Potassium chlorate
  • Lead salts
  • Silver salts
  • Strong alkalis
  • Sodium hypochlorite

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

CIR approved under ammonia and ammonium hydroxide salt category. FDA classified as Generally Recognized as Safe (GRAS). Moderately irritating to skin and eyes but non-sensitizing and non-carcinogenic.

Your Skin

Skin Compatibility

Yes Normal
No Dry
Yes Oily
No Sensitive
Irritancy Low
Comedogenicity Low

Our Assessment

Verdict

Optional

A reliable formulation workhorse for texture and pH control, though not essential for skincare benefits.

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References

Sources