Sulfide dyes

Sulfo group-containing monoazo compounds having an unsubstituted

Sulfur-containing nitroaminobenzene dyes, process and hair dye c

Sulfur-containing secondary para-phenylenediamines dye...

Surface-active oligomers, a process for their preparation and co

Surface-active polysiloxanes

Symmetrical diazo compounds comprising 2-imidazolium groups...

Symmetrical diazo compounds comprising 2-imidazolium groups...

Symmetrical diazo compounds comprising 4-pyridinium groups...

Synthesis of quarternary melanin compounds and their use as hair

Synthesis of tetraazapentamethine compounds, and processes...

Synthetic ebony and method of producing the same (II)

System and method for color-revitalizing hair

System and method for on-site formulation of personalized color-