Back to Ingredient Dictionary

CI 19140

Description

CI 19140, also known as Tartrazine or FD&C Yellow No. 5, is a synthetic lemon yellow azo dye widely used in cosmetics and personal care products. This water-soluble colorant imparts a bright yellow hue to various skincare formulations, including creams, lotions, and soaps. Its primary function is to enhance the visual appeal of products and provide color consistency.

The ingredient is approved by the FDA for use in cosmetics and is considered safe when used as directed. CI 19140 is stable in most formulations and resistant to light, heat, and pH changes, making it a reliable choice for product developers. Its color intensity can be adjusted by varying the concentration, allowing for a range of yellow shades.

While generally well-tolerated, some individuals may experience allergic reactions or skin sensitization to CI 19140. It's important to note that this colorant is not recommended for use around the eye area in the United States. In skincare formulations, CI 19140 is typically used in small amounts, as color additives are usually present at low concentrations. When selecting products containing this ingredient, individuals with sensitive skin or known allergies should perform a patch test before full application.