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CI 12420

Description

CI 12420, also known as Red 36 or Pigment Red 57:1, is a synthetic pigment widely used in cosmetic and personal care products. This calcium salt of 3-hydroxy-4-[(4-methyl-2-sulfophenyl)azo]-2-naphthalenecarboxylic acid belongs to the monoazo class of colorants.

The pigment appears as a bright red powder and is prized for its vibrant hue and excellent color stability. CI 12420 is particularly valued in lip products, blushes, and nail polishes due to its ability to impart a rich, long-lasting color. Its insolubility in water makes it suitable for both oil-based and water-based formulations.

Safety assessments have shown CI 12420 to be non-sensitizing and non-irritating when used in cosmetic applications. It is approved by the FDA for use in cosmetics and personal care products, including those applied to the lips and eye area. The pigment's stability under various pH conditions and resistance to light degradation contribute to its widespread use in the beauty industry.

When formulating with CI 12420, it's important to consider its potential interactions with other ingredients and its impact on product texture. Proper dispersion techniques are crucial to achieve optimal color payoff and prevent clumping in final formulations.