Ethosomes in Hair Dye Products as Carriers of the Major Compounds of Black Tea Extracts

The study investigated the use of ethosomes as carriers for black tea extracts in hair dye products, focusing on their ability to penetrate skin and dye hair. Ethosomes, composed of phospholipids, ethanol, and water, effectively delivered caffeine and gallic acid from black tea extracts into the skin of nude mice. Ethosomes containing black tea extracts coated the hair surface more effectively than black tea extract solutions, providing a temporary hair colorant effect that could be removed by shampooing. The presence of ethanol enhanced the encapsulation and adsorption of black tea extracts onto hair, offering antioxidant benefits. The study concluded that ethosomes could be developed as healthy hair colorants, though further research on delivery mechanisms and long-term effects was needed.