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PVP MONTMORILLONITE.

Valuable / EMULSION STABILISING, FILM FORMING, VISCOSITY CONTROLLING

PVP Montmorillonite is a sophisticated nanocomposite that synergistically combines the purifying and soothing properties of montmorillonite clay with the film-forming and stabilizing capabilities of polyvinylpyrrolidone (PVP). This engineered ingredient efficiently absorbs excess sebum and impurities while enhancing product stability and wear, making it ideal for targeted skin solutions.

Summary

Absorbent Abrasive/Exfoliant Viscosity Controlling Film-forming Emulsion Stabilizing Hair Fixative

Science

Mechanism of Action

PVP Montmorillonite functions through a dual-action mechanism. The montmorillonite component, a highly absorbent clay mineral, efficiently draws out excess oils and detoxifies pores. Research indicates its potential in mitigating skin irritations and promoting advanced wound healing processes, including inflammation reduction, oxidative stress attenuation, angiogenesis enhancement, and stimulation of growth factors and collagen synthesis. Concurrently, the polyvinylpyrrolidone (PVP) acts as a film-former, adhering to the skin to create a continuous, thin protective layer. Crucially, PVP also stabilizes the montmorillonite nanoparticles, facilitating superior dispersion within formulations and influencing the organoclay's adsorption capacity for various organic compounds.

Research

Clinical Evidence

Insufficient-data confidence
Effective range N/A
Optimal

N/A

Transparency

Dusting Analysis

Not commonly dusted

The Formula

Formulation

Solubility
Water
Optimal pH 7 – 9
0 7 14

Stability

Montmorillonite suspensions exhibit optimal stability within a pH range of 7.0 to 9.0. Barrier emulsion formulations incorporating montmorillonite demonstrate robust stability at a neutral pH, approximately 7.2, aligning well with skin's physiological conditions. The PVP component, being a hygroscopic, water-soluble polymer, contributes to the overall hydrophilic nature of the nanocomposite, further enhancing its dispersibility and stability in aqueous systems.

Conflicts

  • Very low pH environments may lead to competition between cationic molecules and H+ protons, potentially reducing the adsorption capacity of montmorillonite.
  • In basic pH ranges above the pKa value, deprotonated molecules may exist in an uncharged form, decreasing intercalation into montmorillonite.

Safety

Safety Profile

CIR Status
Not reviewed
Sensitization risk Unknown

While Polyvinylpyrrolidone (PVP) has been deemed safe for cosmetic use by the Cosmetic Ingredient Review (CIR) Expert Panel and approved by the FDA as a safe and effective demulcent, and Montmorillonite (as a major component of Bentonite) is also considered safe by CIR for cosmetic use (with a caveat regarding incidental inhalation), the combined ingredient, PVP Montmorillonite, has not been specifically reviewed by CIR, SCCS, or FDA.

Your Skin

Skin Compatibility

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

Our Assessment

Verdict

Valuable

PVP Montmorillonite is a valuable, multi-functional ingredient offering significant benefits in skin purification, soothing, and advanced formulation stability across various cosmetic applications.

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