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Moumoujus

AMMONIUM AMPS.

Valuable CAS 58374-69-9 / NOT REPORTED

Ammonium AMPS is a pre-neutralized synthetic polymer that serves as a sophisticated rheology modifier and emulsion stabilizer in precision skincare formulations. This salt-tolerant ingredient excels at maintaining product stability while creating an optimal sensory experience, particularly in acidic formulations containing high concentrations of chemical exfoliants.

Summary

viscosity controlling emulsion stabilising film-forming texture enhancer

Science

Mechanism of Action

Functions by forming a three-dimensional polymer network upon water dispersion, where expanded polymer chains entangle to increase viscosity and prevent oil droplet coalescence. Creates a breathable, non-occlusive film barrier that enhances active ingredient penetration while improving product texture and reducing tackiness.

Research

Clinical Evidence

High confidence
Effective range 0.5–2%
Optimal

1%

Key findings

  1. 01 Demonstrated salt-tolerant thickening properties in acidic formulations (pH 3-5) with up to 15% AHAs/PHAs at 0.5-2.0% concentration
  2. 02 Enhanced topical penetration of macrolide actives at 0.1-10% concentration in stabilization studies
  3. 03 Achieved >84% hydration retention with non-tacky skin feel at 1.0% in leave-on serum formulations

Transparency

Dusting Analysis

Not commonly dusted

Primary function as formulation stabilizer rather than active ingredient makes dusting unlikely and non-applicable

The Formula

Formulation

Solubility
Water
Optimal pH 4 – 9
0 7 14

Stability

Exhibits optimal thickening efficiency between pH 4.0-9.0. Pre-neutralized nature eliminates need for additional bases like TEA or NaOH for activation.

Synergies

  • AHA/BHA chemical exfoliants
  • Oil-in-water emulsion systems
  • Macrolide active ingredients

Conflicts

  • High electrolyte/salt concentrations
  • Cationic surfactants
  • Extreme acidic conditions below pH 3.0

Safety

Safety Profile

CIR Status
Safe as used
Max tested
5%
Pregnancy
Safe
Sensitization risk Low

CIR concluded safety in 2017 for Acryloyldimethyltaurate polymers. Maximum 5% concentration reported in leave-on products, typically used under 2% in facial formulations.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A reliable formulation workhorse that ensures product stability and enhanced sensory experience across all skin types, particularly valuable in acidic active-rich formulations.

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