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CI 42735

Description

CI 42735, also known as Acid Blue 3 or Brilliant Blue FCF, is a synthetic blue dye commonly used in cosmetic and personal care products. This water-soluble colorant belongs to the triphenylmethane class of dyes and is characterized by its intense blue hue and excellent stability across a wide pH range.

In skincare formulations, CI 42735 is primarily utilized for its coloring properties, imparting a vibrant blue shade to various products such as shampoos, body washes, and facial cleansers. Its color remains consistent in both acidic and alkaline environments, making it versatile for different formulation types.

The dye exhibits good light fastness and heat stability, ensuring that products maintain their intended color during storage and use. CI 42735 is approved by regulatory bodies in many countries for use in cosmetics and personal care items, including the FDA in the United States and the European Commission in the EU.

While generally considered safe for topical use, some individuals may experience skin sensitization or allergic reactions. As with any colorant, patch testing is recommended for those with sensitive skin or a history of allergies to cosmetic ingredients.