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ACID BLUE 9

Description

Acid Blue 9, also known as Brilliant Blue FCF or FD&C Blue No. 1, is a synthetic dye widely used in cosmetic and personal care products. This water-soluble colorant imparts a vibrant blue hue to various formulations, including shampoos, conditioners, and hair styling products. Its molecular structure allows for excellent stability across a wide pH range, making it versatile for different haircare applications.

In haircare formulations, Acid Blue 9 serves primarily as a color additive, enhancing the visual appeal of products and helping consumers differentiate between variants within a product line. It is particularly effective in clear or translucent formulations, where its intense blue color can be fully appreciated. The dye's ability to blend well with other colorants allows formulators to create custom shades and color effects in haircare products.

Safety assessments have shown Acid Blue 9 to be non-toxic and non-sensitizing when used at appropriate concentrations in cosmetic formulations. However, as with any colorant, patch testing is recommended for individuals with sensitive skin or a history of allergic reactions. Regulatory bodies worldwide, including the FDA and EU Commission, have approved Acid Blue 9 for use in cosmetics and personal care products, subject to specific concentration limits.