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CI 20040

Description

CI 20040, also known as Yellow 5 or Tartrazine, is a synthetic lemon-yellow azo dye widely used in cosmetics and personal care products. This water-soluble colorant imparts a vibrant yellow hue to various skincare formulations, including creams, lotions, and sunscreens. Its primary function is to enhance the aesthetic appeal of products and provide color consistency.

While CI 20040 is approved for use in cosmetics by regulatory bodies in many countries, including the European Union and the United States, it has been associated with potential allergic reactions in some individuals. Sensitivity to this dye may manifest as skin irritation or contact dermatitis in rare cases. As a result, it is often listed on product labels to allow consumers with known sensitivities to avoid it.

In skincare formulations, CI 20040 is typically used in low concentrations to achieve the desired color effect without compromising product safety or efficacy. It is stable in most pH environments and resistant to light and heat, making it suitable for a wide range of product types. However, formulators must adhere to specific concentration limits set by regulatory authorities to ensure product safety.