Helmut Giesa

Agent, useful for oxidative coloring of keratin fibers e.g. human hair, comprises p-phenylene diamine derivatives, as developer component, in a carrier

Agent, useful for the treatment of keratin fibers, preferably human hair, comprises at least a bisulfite adduct of a diisocyanate and/or a trisulfite adduct of a triisocyanate in a cosmetically acceptable medium

Bridged p-phenylenediamines

Developer components and their use for dyeing keratinic fibers

New polyoxaalkyl-bridged p-phenylenediamines and salts, used as developer in oxidation color for hair or other keratinous fibers, are prepared by reacting 1-fluoro-4-nitrobenzene with polyoxaalkyldiamine and hydrogenation

DEVELOPER CONSTITUENTS AND THEIR USE FOR DYING KERATIN FIBERS

Cosmetic agent, useful e.g. coloring and/or lightening the hair, comprises a component from e.g. oxidation dye precursor and oxidation agent and cucurbiturils compound and/or hemicucubiturils compound

Brightening and/or colouring agent with acrylic acid derivative(s)

DEVELOPING CONSTITUENTS FOR DYEING KERATIN FIBRES

Agent, useful for dyeing keratin fibers, preferably human hair, comprises a cationic benzo(cd)indolium compound