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Moumoujus

AMMONIUM SULFATE.

Optional CAS 7783-20-2 / VISCOSITY CONTROLLING

A water-soluble inorganic salt that serves dual roles as a viscosity modifier and pH buffering agent in skincare formulations. While primarily found in hair care products, it offers mild astringent properties and formulation stability benefits at concentrations up to 1.0%. This multifunctional ingredient provides texture enhancement without significant irritation risk when used within established safety parameters.

Summary

Viscosity controlling Buffering Astringent

Science

Mechanism of Action

Functions through dual pathways: increases solution viscosity by modifying water structure and ionic strength, while simultaneously buffering pH levels to maintain formulation stability. Additionally provides mild astringent effects through protein precipitation mechanisms and ionic interactions with skin surface proteins.

Research

Clinical Evidence

Medium confidence
Effective range 0.1–1%
Optimal

0.5%

Key findings

  1. 01 Demonstrated non-irritating properties in acute safety studies with neat material, though chronic exposure may cause mild dermatitis
  2. 02 Showed no significant histamine release in skin slice studies, indicating minimal allergenic potential

Transparency

Dusting Analysis

Not commonly dusted

Primarily used as a functional ingredient rather than active component, making dusting practices uncommon in skincare applications

The Formula

Formulation

Solubility
Water
Optimal pH 5 – 6
0 7 14

Stability

Highly hygroscopic with tendency to cake; thermally unstable above 235°C releasing toxic gases

Synergies

  • Aqueous systems
  • Mild cleansing agents

Conflicts

  • Alkaline materials
  • Strong bases
  • Potassium chlorate
  • Lead salts
  • Silver salts

Safety

Safety Profile

CIR Status
Safe as used
Max tested
1%
Pregnancy
Safe
Sensitization risk Low

FDA-approved as GRAS food additive; irritation potential is concentration-dependent and minimal at cosmetic usage levels

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Optional

A reliable functional ingredient best suited for oily and normal skin types seeking texture enhancement without irritation concerns.

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