The use of botanical raw materials in hair dyeing

Abstract

The cosmetic market is rich in products that allow changing the color of hair. There are three options for chemical coloring, depending on the duration of the target color. Among them, there are short-term, semi-permanent, and long-term dyeing. Using synthetic ingredients, it is possible to obtain a full range of colors. Reports of undesirable side effects of chemical dyes on both the scalp and hair structure support a return to natural hair coloration and a development in this direction. The aim of the work was to draw attention to apply botanical raw materials in hair dyeing. The work presents the characteristics of the following plant materials used in hair dyeing: defenseless lawsonia, oxalic hibiscus, rhubarb, elderberry and chamomile.

Multifunctional Hair Dyeing with Curcumin via Thiol-Michael Click Reaction

“…For the majority of natural plant hair dyes, hair coloration occurs through two mechanisms: direct dyeing and mordant dyeing. The color intensity of directly dyed hair relies on the affinity between dye molecules and the cuticle of the hair fiber, while mordant dyeing outcomes are greatly influenced by the type of mordant used . These hair dyeing methods introduce considerable uncertainty into the results, affecting the hue of dyed colors and fastness properties.…”

“…The color intensity of directly dyed hair relies on the affinity between dye molecules and the cuticle of the hair fiber, while mordant dyeing outcomes are greatly influenced by the type of mordant used. 37 These hair dyeing methods introduce considerable uncertainty into the results, affecting the hue of dyed colors and fastness properties. Through "click dyeing", curcumin molecules form robust chemical bonds with keratin, resulting in a vibrant yellow hair color (Figure 2a).…”

Recent Advancements in Natural Plant Colorants Used for Hair Dye Applications: A Review

“…For most natural plant hair dyes, there are two mechanisms for hair coloration: direct dyeing and mordant dyeing. Briefly, the hair dyeing process can be divided into two steps: (i) Diffusion of dye molecules from dye bath to the keratinous hair fiber; (ii) Formation of chemical bonds (hydrogen, ionic, and covalent bonds) between the carboxyl or hydroxyl groups present in the dye molecules and amino/sulfhydryl groups in hair keratin, with or without the aid of auxiliary mordanting agents [25].…”