Basic Brown 17

What is Basic Brown 17?

Basic Brown 17 is a synthetic cationic azo dye, identified by Color Index number 12251, produced through chemical synthesis for cosmetic applications. Primarily employed in semi-permanent and temporary hair coloring products like shampoos, gels, and sprays, it imparts rich brown tones. Its positively charged structure enables electrostatic binding to the negatively charged keratin in hair fibers, depositing color on the surface without altering the hair's internal structure. This direct dyeing mechanism ensures vibrant, even coverage that gradually fades with shampooing, offering a gentler alternative to permanent oxidative systems. Formulators incorporate it at regulated levels to achieve desired shades while maintaining product stability and wash-resistant properties across various hair types.

Comedogenic Rating 0/5 Low risk of clogging pores
EWG Safety Rating 4 View on EWG →
PubChem View on PubChem →

Roles in Formulation

This ingredient serves the following purposes in cosmetic formulations:

Hair colorant
Delivers hair color through dyes and/or pigments (direct or oxidative systems), producing a visible shade change and supporting coverage and longevity.
Hair dyeing
Supports chemical color change of hair (e.g., oxidative dye development or bleaching), enabling shade transformation through controlled reactions on the fiber.

Benefits

Delivers visible brown color changes for customized shades.

Supports hair coverage, helping mask grays temporarily.

Provides color longevity through firm adhesion to hair surface.

Who It's For

A quick guide for who this ingredient may suit (and who should be cautious).

Who May Benefit Who Should Avoid
People seeking semi-permanent brown hair color.
Those with known allergies to hair dyes.
Individuals preferring fade-out dyes over permanent options.
People experiencing skin sensitization from colorants.
Users wanting vibrant tones in rinse-off color products.
Individuals with damaged or chemically treated hair prone to reactions.

Safety Notes

  • Rated moderate concern by hazard assessments; perform patch test before full use.
  • Regulated for use in hair dyes with purity requirements to minimize impurities.

Frequently Asked Questions about Basic Brown 17

What is Basic Brown 17 used for?

It serves as a hair colorant in semi-permanent products to provide brown shades through surface deposition.

Is Basic Brown 17 safe for hair coloring?

It meets regulatory standards for hair dyes when used as directed, with recommendations for patch testing.

How does it apply color to hair?

The cationic dye adheres electrostatically to hair keratin for temporary, washable color.