What are the ingredients of Optical Color-Shifting Pigments for Nail Polish?

1. Core base substrate (sheet-like substrate)

Natural mica

The common type, layered silicate, with flat and soft luster, moderate cost, suitable for use as a base for nail polish.

Synthetic Fluorphlogopite

High transparency and high luster, with fewer impurities and higher whiteness. Our Optical Color-Shifting Pigments is specially designed for high-end nail polish and has cleaner and less dusty polarized light effect.

Silica Flakes - Ultra-thin glass-like texture, with strong transparency and fantasy. Perfect for clear glass beads and neon light-changing nail polish.

Alumina Flakes - Mirror-like high-gloss chips, with a strong metallic effect, suitable for mirror-changing lizards and laser nail polish.

2. Interference Coating Layer (Key to Color Change / Angle Coloration)

The alternating multi-layer nano-coating is the source of color change:

Titanium Dioxide TiO₂ (anatase / rutile): High refractive index, used as the main interference layer

Silicon Dioxide SiO₂: Low refractive index, used as the spacer buffer layer

Iron Oxides (Fe₂O₃): Warm tones (gold, copper, red, rose gold)

Titanium Oxide SnO₂: Coating stabilizer, enhances adhesion, prevents color change, and resistance to acid and alkali

Chromium Oxide Cr₂O₃: Green color illusion (high-end nail polish chameleon)

3. Surface Coating Modified Layer (Essential for Nail Polish System)

To adapt to the nail polish solvent, resin, and long-term immersion, surface treatment must be carried out:

Silane Coupling Agent

Resistant to acetone and nail polish solvents, preventing the coating from peeling off, fading or delaminating.

Fatty acid coating

Stearic acid, oleic acid, etc., are hydrophobic and anti-settling, easy to disperse. They do not form clumps or float oil in nail polish.

Polymer coating

Acrylic / polyester coating, enhances compatibility with nail polish resin, prevents settling and roughness reoccurrence.

4. Auxiliary Color Adjustment and Functional Components

Pearl Whitening Agent: A small amount of silica and talcum powder are used to slightly adjust the transparency of the base color.

Color Powder: Inorganic color powder (iron oxide) is used for minor color adjustment. Dyes are not used (to avoid solvent solubility issues).

Antioxidant and Stabilizer: Prevents the nail polish from turning yellow over time and prevents the coating from oxidizing.