Performance & Formulation Insights for D&C Red 21 Lake Med Dye
FDA-Approved Red Aluminum Lake
D&C Red 21 Lake Med Dye (CI 45380:2) is the aluminum lake of D&C Red 21, an FDA-approved drug & cosmetic red colorant. This Med Dye grade contains 22-27% dye content.
Key Technical Information
A “lake” pigment is the insoluble metallic salt of a water-soluble dye, allowing use in anhydrous and oil-based color cosmetics where the parent dye would not disperse. The lake substrate provides stability, controlled dye release, and ease of dispersion.
Key Formulation Notes
- Color Index: CI 45380:2
- Form: Aluminum Lake
- Dye Strength: 22-27%
- INCI: Red 21 Lake (CI 45380:2), Aluminum Hydroxide
- Regulatory: D&C colorants have FDA-defined application restrictions (eye area, lip, external use). Verify application restrictions for D&C Red 21 per your regional regulatory requirements.