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Moumoujus

MONTAN ACID WAX.

Valuable CAS 68476-03-9 / BINDING, VISCOSITY CONTROLLING

Montan Acid Wax is a versatile lipid-based ingredient primarily functioning as a binder and viscosity regulator in skincare formulations. It contributes significantly to product texture and stability while creating a protective, breathable film on the skin to aid in moisture retention and environmental protection.

Summary

binding viscosity controlling emollient thickener film-former

Science

Mechanism of Action

This ingredient primarily functions as a binding and viscosity controlling agent, crucial for maintaining emulsion stability and achieving desired product consistency, thereby preventing phase separation. On the skin, Montan Acid Wax establishes a subtle occlusive film that effectively minimizes transepidermal water loss (TEWL) and enhances the skin's defense against external stressors, including cold. It also acts as an emollient, thickener, and film-former, facilitating the uniform dispersion and spreadability of oils and active ingredients.

Research

Clinical Evidence

Medium confidence
Effective range N/A
Optimal

N/A

Key findings

  1. 01 Montan waxes generally contribute to formulation stability and improve skin protection by forming a breathable, occlusive film that reduces moisture evaporation and offers cold protection.
  2. 02 Derivatives, such as Glyceryl Montanate, have demonstrated improved long-term stability and imparted a soft skin sensation at concentrations exceeding 1%.

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Oil
Optimal pH N/A
0 7 14

Stability

The broader Montan wax category exhibits robust chemical stability, resistance to oxidation, and resilience against moisture and microbial contamination. It possesses a high melting point, typically ranging from 78°C to 95°C. This wax can be effectively emulsified by incorporating an alkali, enabling its use in water-based formulations.

Safety

Safety Profile

CIR Status
Safe as used
Sensitization risk Low

The Cosmetic Ingredient Review (CIR) Expert Panel reaffirmed in 2025 their earlier conclusion (1984) that Montan Wax (the parent ingredient) is safe in cosmetics under current practices of concentration and use. Montan Acid Wax itself is listed on EWG's Skin Deep with moderate concerns for persistence, bioaccumulation, and non-reproductive organ system toxicity, alongside a low concern for ecotoxicology; however, it is not present on EWG's Restricted or Unacceptable Lists. FDA status primarily indicates recognition as a food additive or for food contact substances, rather than a specific cosmetic safety assessment for Montan Acid Wax.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

Montan Acid Wax is a valuable ingredient for enhancing formulation stability and delivering skin protection through its film-forming, moisture-retaining properties, proving particularly beneficial for dry and sensitive skin.

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