Back to Ingredient Dictionary

ACID BLUE 1

Description

Acid Blue 1, also known as Brilliant Blue FCF or E133, is a synthetic dye widely used in cosmetic and personal care products, particularly in haircare formulations. This water-soluble compound belongs to the triarylmethane family of dyes and is characterized by its vibrant blue color. In haircare, Acid Blue 1 serves as a colorant in shampoos, conditioners, and temporary hair dyes, providing a cool blue tint or enhancing the overall color perception of the product.

The ingredient is approved by regulatory bodies such as the FDA and European Commission for use in cosmetics and personal care items. Acid Blue 1 exhibits excellent stability across a wide pH range and is resistant to light and heat, ensuring long-lasting color in formulations. Its molecular structure allows for uniform distribution and consistent coloration in various hair types.

While primarily used for its coloring properties, Acid Blue 1 may also contribute to the visual appeal of haircare products, potentially influencing consumer perception and product efficacy. However, it is important to note that this ingredient does not provide any significant conditioning or treatment benefits to the hair itself.