Performance & Formulation Insights for Gemini IR-38
Gold-Bronze-to-Red Duochrome Through TiO2 Interference Layers
Gemini IR-38 produces a dramatic warm-toned color travel from gold-bronze to vivid red. The duochrome effect is achieved through precisely calibrated Titanium Dioxide interference layers deposited on silica-coated natural mica platelets. At certain viewing angles the pigment displays warm gold-bronze tones, but as the angle changes, the interference shifts to reveal a rich, saturated red. This creates a luxurious, gemstone-like effect on skin.
The 20–80 μm particle range is specifically engineered for the Gemini color-travel platform. The distribution balances large platelets for maximum color shift visibility with smaller particles for smooth blending. The silica coating serves as an optical spacer that precisely tunes the interference wavelength and simultaneously improves surface characteristics for cosmetic formulation.
Silica-Coated Mica System: Formulation Advantages
The silica interlayer provides critical advantages for formulators. It creates a chemically inert, smooth surface that reduces interactions with emulsifiers, preservatives, and active ingredients in complex cosmetic systems. This stability ensures the color-travel effect remains consistent throughout a product’s shelf life.
In pressed powders, the silica-coated platelets offer excellent binding properties for firm, durable cakes with minimal fallout. In liquid and cream formulations, the silica surface promotes rapid, even wetting and dispersion, minimizing processing time and ensuring batch-to-batch color consistency.
Key Benefits for Formulators
- Dramatic Red Shift: Bold gold-bronze-to-red color travel creates a luxurious, gemstone-like duochrome effect.
- TiO2 Interference Technology: Precisely tuned Titanium Dioxide layers produce high-chroma, angle-dependent color shift.
- Silica Surface Treatment: Silica coating ensures chemical stability and enhances dispersion across all formulation types.
- Full Application Range: Approved for eye, face, lip, and nail use across diverse cosmetic formats.
- Clean Beauty Compliant: Ferro-free, carmine-free, vegan, cruelty-free, and Natural per ISO 16128.
- Shelf-Stable Performance: Inert silica coating protects the interference layers for long-term color consistency.
