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CI 42100

Description

CI 42100, also known as Blue 1 or Brilliant Blue FCF, is a synthetic colorant widely used in cosmetics and personal care products. This water-soluble dye imparts a vibrant blue hue to various formulations, including skincare products, makeup, and hair care items. CI 42100 belongs to the triarylmethane class of dyes and is approved by regulatory bodies in many countries for use in cosmetics and food products.

In skincare formulations, CI 42100 is primarily used for its aesthetic properties, helping to create visually appealing products that may enhance consumer experience. It is particularly effective in clear or translucent formulations where its intense blue color can be showcased. The dye is stable across a wide pH range and resistant to light, heat, and most preservatives, making it suitable for various product types.

While CI 42100 is generally considered safe for topical use, some individuals may experience sensitivity or allergic reactions. As with any colorant, it's important to use it in appropriate concentrations as determined by regulatory guidelines. Formulators should consider potential interactions with other ingredients and conduct stability testing to ensure product integrity over time. When used responsibly, CI 42100 can contribute to the visual appeal of skincare products without compromising their efficacy or safety.