This study reports the development of a natural hair-coloring system using size-controlled ink particles from cuttlefish ink combined with chitosan, achieving darker and more uniform black coloration on hair than existing plant-based natural colorants, without the need for metallic mordants.
This study developed a natural hair dye using Coreopsis tinctoria Nutt. extract, finding that it produced yellow to dark brown colors depending on the treatment, with ferrous lactate enhancing dye performance and color stability after washing.
This study examined the use of plant extracts as natural hair dye colourants, highlighting their antioxidant properties and eco-friendly benefits. The authors reported that plant-based dyes effectively deliver vibrant colours and enhance hair health while offering a sustainable alternative to synthetic dyes.
This study found that extracts from plants like onion peel and walnut possess strong antioxidant properties, making them promising eco-friendly alternatives to synthetic hair dyes, delivering vibrant colors and better wash fastness when combined with oxalic acid.
April 2026 in “Zenodo (CERN European Organization for Nuclear Research)” This review discusses the development and benefits of herbal hair dye formulations using medicinal plants like henna and indigo, noting their potential as safer, eco-friendly alternatives to synthetic dyes due to their nourishing and protective properties for hair and scalp.
