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Moumoujus

CALCIUM SILICATE.

Valuable CAS 1344-95-2 / ABSORBENT, BULKING, OPACIFYING, PEARLESCENT, VISCOSITY CONTROLLING

A multifunctional inorganic mineral that serves as a high-performance mattifying agent and structural enhancer. Beyond its textural benefits, it exhibits bioactive properties by releasing essential ions that support the skin's natural regenerative processes and barrier defense.

Summary

Absorbent Bulking agent Opacifying agent Viscosity modifier Bioactive ion source

Science

Mechanism of Action

It functions primarily as a physical microporous absorbent that captures excess sebum and moisture to maintain a matte finish. On a cellular level, it releases calcium and silicate ions that trigger the EGF/EGFR/ERK signaling pathways, stimulating epidermal stem cell activity to accelerate tissue repair and re-epithelialization.

Research

Clinical Evidence

High confidence
Effective range 1–5%
Optimal

5%

Key findings

  1. 01 Achieved a significant SPF value of 37.94 while maintaining lower photocatalytic activity and fewer free radicals than traditional TiO2 or ZnO filters.
  2. 02 Clinically proven to enhance structural integrity, increasing nail thickness by 39% and overall strength by 64% over a 28-day period.
  3. 03 Successfully accelerated the closure of cutaneous wounds by activating human epidermal stem cells.

Transparency

Dusting Analysis

Not commonly dusted
Min. effective
1%
Red flag below
0.5%

While often used as a technical bulking agent at low levels, clinical data suggests it provides measurable bioactive and photoprotective benefits starting at 1-5%. Levels below 0.5% are likely for anti-caking rather than skin performance.

The Formula

Formulation

Solubility
Water
Optimal pH 7 – 10
0 7 14

Stability

Thermally robust and stable in powder form. In liquid formulas, it exhibits alkaline behavior and may slightly elevate the final pH of the system.

Synergies

  • Inorganic UV filters
  • Silica-gel systems
  • Sebum-regulating actives

Conflicts

  • Strong acids
  • Acid-sensitive actives (L-Ascorbic Acid)
  • Hydrogen ion donors

Safety

Safety Profile

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

Ensure crystalline silica content is strictly below 0.1%. Avoid use in high-pressure spray formats to prevent inhalation risk.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A sophisticated mineral active that bridges the gap between aesthetic texture control and clinical skin regeneration.

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References

Sources