Back to Ingredient Dictionary

DISPERSE RED 15

Description

Disperse Red 15, also known as C.I. Disperse Red 15 or 1-[(2-Chlorophenyl)azo]-2-naphthol, is a synthetic azo dye commonly used in haircare formulations. This vibrant red colorant is particularly effective in temporary and semi-permanent hair dyes due to its ability to adhere to hair fibers without penetrating the cortex.

The compound exhibits excellent color stability and resistance to fading, making it suitable for long-lasting hair coloration. Disperse Red 15 is often combined with other dyes to create a wide range of red and auburn shades. Its molecular structure allows for even distribution throughout the hair shaft, resulting in uniform color application.

While primarily used in hair dyes, Disperse Red 15 may also be found in some cosmetic products. However, it's important to note that this ingredient can cause allergic reactions in sensitive individuals. Patch testing is recommended before use. The concentration of Disperse Red 15 in hair dye formulations is typically regulated to ensure safety and efficacy.

When formulating with Disperse Red 15, it's crucial to consider its solubility characteristics and potential interactions with other ingredients to optimize color performance and minimize the risk of staining on skin or clothing.