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Moumoujus

CALCIUM CHLORIDE.

Valuable CAS 10043-52-4 / ASTRINGENT, VISCOSITY CONTROLLING

An essential mineral electrolyte that plays a vital role in maintaining the biological signals required for skin barrier integrity. In topical formulations, it functions as a precision-modulating agent that influences cell differentiation and product texture.

Summary

Viscosity Controlling Astringent Barrier Repair Signaling Cross-linking Agent

Science

Mechanism of Action

It provides divalent calcium ions (Ca2+) to support the epidermal calcium gradient, which is highest in the stratum granulosum. This gradient triggers the exocytosis of lamellar bodies, releasing the lipids necessary to repair the permeability barrier and ensuring proper keratinocyte maturation.

Research

Clinical Evidence

Medium confidence
Effective range 0.04–0.28%
Optimal

0.1%

Key findings

  1. 01 Indicated that while solo application may delay barrier recovery, synergy with Magnesium Chloride (where Mg > Ca) significantly accelerates skin repair.
  2. 02 Optimized the physical and oxidative stability of hydrogel delivery systems, preventing droplet aggregation.

Transparency

Dusting Analysis

Commonly dusted
Min. effective
0.05%
Red flag below
0.01%

Because calcium chloride is effective at very low millimolar concentrations for signaling, brands often include it at negligible levels (below 0.01%) for 'label claims' without providing the electrolyte balance necessary for actual barrier benefit.

The Formula

Formulation

Solubility
Water
Optimal pH 5.5 – 7.5
0 7 14

Stability

Exothermic upon dissolution and highly deliquescent; requires strictly controlled anhydrous storage or stable aqueous environment.

Synergies

  • Magnesium Chloride
  • Alginate
  • Glycerin

Conflicts

  • Phosphates
  • Sulfates
  • Carbonates
  • Zinc
  • Strong Acids

Safety

Safety Profile

CIR Status
Not reviewed
Max tested
0.2%
Pregnancy
Safe
Sensitization risk Low

Recognized as FDA GRAS; classified as low hazard priority by OECD due to its natural occurrence in biological systems.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

A high-precision mineral tool that, when balanced with magnesium, is essential for restoring the skin's natural defensive gradient.

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References

Sources