Performance & Formulation Insights for D&C Red 7 Ca Lake O
FDA-Approved Red Calcium Lake
D&C Red 7 Ca Lake O (CI 15850:1) is the calcium-precipitated lake of D&C Red 7, an FDA-approved drug & cosmetic red colorant. This O grade contains Min 60% 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 15850:1
- Form: Calcium Lake
- Dye Strength: Min 60%
- INCI: Red 7 Lake (CI 15850:1), Calcium Salt
- Regulatory: D&C colorants have FDA-defined application restrictions (eye area, lip, external use). Verify application restrictions for D&C Red 7 per your regional regulatory requirements.
