Blue 4

We found 6 products that contain Blue 4

Blue 4 - Ingredient Explanation

Blue 4

Other Names: D&C Blue No. 4

Function: Cosmetic Colorant

1. Definition Blue 4:

Blue 4, also known as CI 42090, is a synthetic dye commonly used in cosmetics to impart a blue color to various products. It is a water-soluble dye that is often used in skincare, hair care, and makeup products.

2. Use:

Blue 4 is primarily used as a colorant in cosmetics to achieve a blue hue. It can be found in products such as shampoos, conditioners, body washes, lotions, eyeshadows, and lipsticks. The vibrant blue shade provided by Blue 4 adds a visually appealing element to cosmetic formulations.

3. Usage Blue 4:

When using products containing Blue 4, it is important to be aware of potential sensitivities or allergies to synthetic dyes. It is recommended to perform a patch test before using a product with Blue 4, especially if you have sensitive skin. Additionally, some individuals may experience skin irritation or allergic reactions when exposed to synthetic dyes, so it is advisable to discontinue use if any adverse effects occur.

4. References:

- Food and Drug Administration. (2018). Color Additives Permitted for Use in Cosmetics. Retrieved from https://www.fda.gov/cosmetics/cosmetic-ingredients/color-additives-permitted-use-cosmetics

- Cosmetic Ingredient Review. (2007). Final Report on the Safety Assessment of Acid Blue 9 (CI 42090). Retrieved from https://www.cir-safety.org/sites/default/files/AB9.pdf

- Personal Care Products Council. (2021). List of Prohibited and Restricted Cosmetic Ingredients. Retrieved from https://www.personalcarecouncil.org/resource/cosmetic-ingredient-review-cir/