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CI 18965

Description

CI 18965, also known as Acid Yellow 36, is a synthetic azo dye used in various cosmetic and skincare formulations. This water-soluble colorant imparts a bright yellow hue to products, making it popular in decorative cosmetics, hair dyes, and some topical skincare preparations.

The molecule consists of a complex azo structure, which contributes to its vibrant coloration and stability in various formulations. CI 18965 is approved for use in cosmetics by regulatory bodies in many countries, including the European Union and the United States, with specific concentration limitations.

While primarily utilized for its coloring properties, CI 18965 also exhibits some degree of light-fastness, helping to maintain product appearance over time. However, like many synthetic dyes, it may cause skin sensitization in a small percentage of individuals, particularly those with sensitive skin or a history of allergic reactions to azo compounds.

Formulators should consider potential interactions with other ingredients, pH sensitivity, and the overall stability of the product when incorporating CI 18965. Its use is generally restricted to rinse-off products or limited concentrations in leave-on formulations to minimize the risk of adverse reactions.