Performance & Formulation Insights for Gemini IY-38
Gold-Bronze-to-Yellow Duochrome Through TiO2 Interference Technology
Gemini IY-38 creates a luminous warm-toned color travel from gold-bronze to bright yellow. The duochrome shift is produced by precisely tuned Titanium Dioxide interference layers on silica-coated natural mica platelets. At one angle the pigment appears as a warm gold-bronze, while tilting reveals a bright, clean yellow. This transition creates a sunny, radiant effect reminiscent of golden hour light on skin.
The 20–80 μm particle size distribution delivers the ideal balance of color-shift visibility and application smoothness. The silica interlayer functions as both an optical spacer for precise interference tuning and a surface modifier that enhances how the pigment interacts with cosmetic binders and solvents.
Silica-Coated Mica System: Formulation Advantages
The silica coating provides formulators with a pigment that is remarkably easy to work with. Its smooth, hydrophilic surface ensures rapid wetting in aqueous systems and clean dispersion in anhydrous bases. In pressed powder formats, the coated platelets contribute to excellent cake strength while maintaining smooth payoff.
The chemical inertness of the silica layer means Gemini IY-38 is compatible with a wide range of cosmetic ingredients including organic UV filters, acids, and botanical extracts. This makes it suitable for modern multi-functional formulations where pigment stability is critical.
Key Benefits for Formulators
- Radiant Yellow Shift: Gold-bronze-to-yellow color travel creates a sunny, luminous duochrome effect reminiscent of golden light.
- TiO2 Interference Precision: Titanium Dioxide layers tuned for yellow-range interference produce a clean, bright color shift.
- Broad Formulation Compatibility: Silica surface ensures stability with organic UV filters, acids, and botanical actives.
- Full Application Range: Approved for eye, face, lip, and nail use in diverse cosmetic product types.
- Clean & Conscious: Ferro-free, carmine-free, vegan, cruelty-free, and Natural per ISO 16128.
- Unique Color Story: The gold-to-yellow transition offers a distinctive shade not commonly found in duochrome pigments.
