Solution for D&C Red No. 28 Color Fading

It sounds like you're experiencing color fading with D&C Red No. 28 in your formulation. This is a common issue, especially with water-soluble forms of this color (CI 45410), as they can be sensitive to UV light exposure, which causes the color to degrade over time.

To help prevent this fading and maintain the color stability of D&C Red No. 28, consider the following methods:

• Add a UV Filter: Incorporating a UV filter into your formulation can help protect the color from UV radiation, which is a primary cause of fading for this type of dye. This acts as a shield for the color molecule.
• Choose a More Stable Form: Depending on your formulation type (water-based, oil-based, makeup, etc.), you might consider using a different form of D&C Red No. 28 that offers better stability:
  • If you need a water-soluble version, the D&C Red No.28 Phloxine (CI45410) EasyWash™ is described as fade-resistant.
  • If your formulation is oil-based or a makeup product where the color needs to stay on the skin, ReadyMix™ D&C Red No.28 Lake (Oil Based) or D&C Red No.28 Al Lake EasyMix™ (Lake pigments) are generally more stable than water-soluble dyes and are designed for dispersion in oil or powder bases.

The best solution will depend on the specific characteristics of your formulation. Evaluating the type of base (water or oil) and the intended application (rinse-off, leave-on, makeup) will help you choose the most suitable form of D&C Red No. 28 or determine if adding a UV filter is the right approach for your current formula.