What it is
CI 45100 is a water-soluble synthetic dye in the xanthene class that produces a vivid red shade. It is used in small amounts to color cosmetics, including tinted products. As a soluble dye it tints the formula rather than acting as a dispersed pigment.
Safety & warnings
Used as a cosmetic colorant within regulated purity and usage limits. As with many synthetic dyes, permitted applications vary by region, and it should be used within approved limits.
Origin & sourcing
Synthetic organic dye.
Questions everyone asks
What is CI 45100?
It is a synthetic red xanthene dye used to color cosmetic products.
Is it a dye or a pigment?
It is a soluble dye, so it tints the formula rather than being dispersed as solid particles.