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CALCIUM CARBOXYMETHYL CELLULOSE.

Valuable CAS 9050-04-8 / EMULSION STABILISING, FILM FORMING, VISCOSITY CONTROLLING

A high-performance modified cellulose derivative that serves as both a structural stabilizer and a potent hydration reservoir. It is prized in precision skincare for its ability to form a breathable, protective shield while simultaneously supporting the skin's internal repair mechanisms.

Film Forming Viscosity Controlling Emulsion Stabilizing Texture Refinement

Science

This ingredient functions as a sophisticated film-former and hygroscopic agent. Upon application, it creates a continuous, micro-thin barrier that smooths surface irregularities and traps moisture. Its unique molecular structure allows it to swell up to 30 times its dry weight, providing an immediate plumping effect and acting as a time-release moisture reservoir that protects the skin from environmental stressors.


Research

High confidence
Effective range 1–100%
Optimal

1%

Key findings

  1. 01 In vitro evaluation on human dermal fibroblasts demonstrated a 228% increase in pro-collagen I α I production, indicating significant potential for dermal remodeling and anti-aging benefits.
  2. 02 Comprehensive clinical assessments by the CIR Expert Panel confirmed that even at concentrations up to 100%, the ingredient remains non-irritating and non-sensitizing.

Transparency

Not commonly dusted
Min. effective
1%
Red flag below
0.1%

While often used at low levels for texture modification, clinical data suggests that a concentration of at least 1.0% is required to trigger biological benefits such as collagen stimulation. Formulations using it purely for viscosity at trace amounts may be considered 'dusting' if claiming anti-aging properties.


The Formula

Solubility
Water
Optimal pH 4.5 – 7
0 7 14

Stability

Highly stable across a broad pH range (3.0–11.0). While technically water-insoluble, it is exceptionally water-dispersible, forming a viscous, stable gel network.

Synergies

  • Humectants like Glycerin
  • Hyaluronic Acid
  • Barrier Repair Lipids

Conflicts

  • Strong oxidizing agents
  • Polyvalent metal ions
  • Extreme pH environments (<3.0 or >12.0)

Safety

CIR Status
Safe as used
Max tested
100%
Pregnancy
Safe
Sensitization risk Low

Recognized as GRAS (Generally Recognized as Safe) by the FDA; it is non-toxic and exhibits no photosensitizing potential.


Your Skin

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

Our Assessment

Valuable

An exceptional multifunctional ingredient that bridges the gap between textural elegance and clinically-backed skin repair.


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