"Synthetic dyes that are currently used ... "Even though their chemical structure is similar, their toxicity varies from compound to compound." Human immune and liver cell lines were used in ...

Frequent bleaching and colouring also degrade the hair’s protein structure, leading to split ends and excessive hair fall. Chemical hair dyes can cause scalp irritation, redness, itching ...

The researchers designed a series of donor−π–acceptor (D−π–A) fluorophores based on a π-extended fluorene structure ... the ...