The characteristics of Optical Color-Shifting Pigments for Eyeshadow.

1. Basic Powder Physical Properties

Particle Size Distribution

Mainstream: 10 - 40 μm. Fine: 5 - 15 μm for fine pearlescent effect. Medium-coarse: 20 - 40 μm for polarized high gloss effect. The powder is in regular sheet form, with uniform thickness and even thickness distribution. It spreads color evenly without powder flying off.

Texture and spreadability

High smoothness, easy to grind and press onto the disc, and good compatibility with mica, talcum powder, and nylon powder; the pressed eyeshadow is not prone to cracking or clumping, and easy to blend with the hand.

Appearance and form

Multi-layer interference sheet-like structure, without coarse metal particles or debris, with fine and soft focus without any graininess.

2. Core Characteristics of Optical Chromaticity

Angle-dependent color-changing effect

When viewed from different angles, Optical Color-Shifting Pigment shows a shift between two or multiple colors (such as pink → purple, gold → green, blue → cyan, rose → silver fantasy), and polarized light can be produced even under weak light or in everyday lighting conditions. It is not sensitive to light sources.

High color rendering & high translucency

Transparent without grayish tint or dullness. A thin application gives a transparent sheen, and multiple layers create a strong sense of depth. There is no heavy metallic greyness, making it suitable for daily light makeup, smoky eyes, and creative looks.

Base color adaptability

Suitable for light-colored underlayers and dark-colored smoky underlayers. The black base shows off the color more vividly and the polarization transition is more pronounced.

3. Safety and Compliance Characteristics of Makeup (Eye-level Key Points)

Raw material safety

No excessive heavy metals: Lead, cadmium, hexavalent chromium, mercury comply with cosmetic national standards / EU Cosmetics Regulation 1223/2009; no free ions of irritating heavy metals.

Gentle on the eyes

Low irritation, non-allergenic. Can be directly applied to eyelids, eye corners for brightening, and to the dimples under the eyes. It does not irritate the eyes or cause eye fatigue. The powder has no dust irritation.

Compliance restrictions

Disable the eye area colorant components, in line with FDA, EU EP, and China's cosmetics raw material directory. It can be used as a registered cosmetic raw material.

4. Formula and Application Compatibility Characteristics

System Compatibility

Compatible with dry powder eyeshadow, wet pressed eyeshadow, liquid eyeshadow, and cream eyeshadow; fully compatible with oils, wax-based substances, and powder fillers, without coagulation or precipitation.

Surface modification

Carry out more hydrophobic and lipophilic coating treatments: Waterproof, sweat-proof, oil-proof. The makeup can last longer on the eyes, without powder floating, no makeup loss, and no line accumulation.

Compatibility stability

When mixed with pearlescent powder, matte powder, and color-changing powder, it does not cause color mixing or fading, and does not change color or oxidize even under high-temperature storage.

5. Weather Resistance and Usage Stability

Resistant to acids and alkalis, resistant to sebum: Eye sweat and oil do not damage the pearlescent polarization effect;

Temperature resistance: The color and structure do not change or decompose under the normal production and processing temperatures of conventional makeup;

No whitening or darkening: The transparent and clear effect remains unchanged when wearing makeup for a long time.

6. Key differences from automotive color-changing paint

Eyeshadow-grade, more fine and smooth texture, no coarse particles, no toxicity or irritation to the eyes;

Color selection leans towards soft and fantasy tones, with low metallic coldness, suitable for makeup;

The hydrophobic coating is adapted to the makeup powder/gel formula, not pursuing extremely high outdoor weather resistance, focusing on skin feel and mildness.