
SOLVENT RED 73
Description
Solvent Red 73, also known as D&C Red No. 73, is a synthetic azo dye commonly used in cosmetic and personal care products, particularly in hair coloring formulations. This oil-soluble colorant imparts a vibrant red hue to various hair dye products, including temporary, semi-permanent, and permanent hair colors. Solvent Red 73 exhibits excellent color stability and resistance to fading, making it a popular choice for long-lasting hair coloration.
The molecular structure of Solvent Red 73 allows for efficient penetration into the hair shaft, resulting in even and consistent color distribution. It is often combined with other dyes to create a wide range of red and auburn shades. This ingredient demonstrates good compatibility with common hair care formulation components, such as surfactants, conditioning agents, and other colorants.
While Solvent Red 73 is approved for use in hair dye products in many countries, it is important to note that it is not permitted for use in products that come into direct contact with mucous membranes or in the eye area. As with all hair dye ingredients, patch testing is recommended to assess individual sensitivity before use.