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Moumoujus

CARNAUBA ACID WAX.

Valuable CAS 442682-58-8 / ABSORBENT, BINDING, FILM FORMING, VISCOSITY CONTROLLING

A specialized derivative of natural carnauba wax optimized for its high acid value, which enhances emulsification and structural integrity in high-performance skincare. It serves as a sophisticated texture modifier that provides a smooth, non-tacky finish while reinforcing the skin's protective moisture barrier.

Summary

emollient viscosity controlling film forming binding absorbent

Science

Mechanism of Action

By forming a breathable, occlusive film on the stratum corneum, Carnauba Acid Wax effectively seals in hydration and prevents trans-epidermal water loss (TEWL). At a molecular level, its high acid number facilitates superior binding and stabilization within emulsions, allowing for the creation of structurally sound, high-gloss formulations that glide across the skin without friction.

Research

Clinical Evidence

High confidence
Effective range 2–10%
Optimal

2.5%

Key findings

  1. 01 Concentrations as low as 2.5% can elevate the melting point of lipid-based systems by over 20°C, drastically improving thermal stability.
  2. 02 A 2.0% inclusion rate has been shown to effectively stabilize complex anhydrous color cosmetic matrices and binding systems.

Transparency

Dusting Analysis

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

While primarily a structural agent, Carnauba Acid Wax is rarely 'dusted' because its primary value lies in physical stability; at concentrations below 1%, its ability to provide film-forming benefits or structural integrity is significantly diminished.

The Formula

Formulation

Solubility
Oil
Optimal pH 4 – 7.5
0 7 14

Stability

Highly heat-stable up to 90°C. Requires heating to 80-90°C for proper integration into the oil phase. Maintain stability in acidic to neutral environments.

Synergies

  • Petroleum-based waxes
  • Mineral pigments
  • Vegetable oils

Conflicts

  • Strong oxidizing agents
  • Highly alkaline environments (pH > 8.0) which may trigger unwanted saponification

Safety

Safety Profile

CIR Status
Safe as used
Max tested
10%
Pregnancy
Safe
Sensitization risk Low

Recognized as hypoallergenic and non-toxic; safety profiles are generally aligned with Copernicia Cerifera (Carnauba) Wax.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

An essential structural stabilizer and moisture-locking emollient that provides exceptional thermal resistance and a refined skin feel.

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