
BASIC RED 51
Description
Basic Red 51, also known as D&C Red No. 51, is a synthetic colorant widely used in cosmetic and personal care formulations, particularly in haircare products. This water-soluble dye belongs to the xanthene class of compounds and exhibits a vibrant red hue. Its molecular structure allows for excellent color stability across a range of pH levels, making it suitable for various product types.
In haircare formulations, Basic Red 51 is primarily utilized in temporary and semi-permanent hair dyes, providing intense, vivid red tones. It is especially effective in creating bold, fashion-forward hair colors and enhancing warm undertones in brunette shades. The dye's cationic nature allows it to adhere well to the hair shaft, resulting in longer-lasting color compared to some other temporary colorants.
While Basic Red 51 is approved for use in hair dyes and rinses by regulatory bodies such as the FDA and EU Cosmetics Regulation, it is not permitted for use in products that come into contact with mucous membranes. Formulators should be aware of concentration limits and usage restrictions when incorporating this ingredient into haircare products to ensure safety and compliance with regional regulations.