Melanoid-based hair coloring agent

Abstract

The invention relates to a melanoid-based hair coloring agent, which comprises an amino compound, a reducing sugar and an alkaline agent, wherein the amino compound comprises a botanical amino-containing extract, and the botanical amino-containing extract is selected from a botanical protein, a botanical peptide, an amino acid and a combination of a botanical protein, a botanical peptide and an amino acid. The melanoid-based hair coloring agent is natural, harmless, and good in hair coloring effect.

Description

technical field [0001] The present invention relates to a hair colorant, in particular to a melaninized hair colorant. Background technique [0002] When people are old, they tend to look old because of gray hair, so it is always hoped to reduce visual age by dyeing gray hair back to dark brown. [0003] However, dark brown hair coloring agents mostly contain p-phenylenediamine (paraphenylenediamine, PPD) synthetic dyes, and even contain oxidants such as hydrogen peroxide and phenolic compounds. The use of synthetic hair coloring agents not only may cause allergies, but also poses a risk of cancer when absorbed through the skin. In addition, hair dyed with synthetic hair colorants will lose a large amount of protein, moisture and lipids, which will damage the hair quality. [0004] Although humans have tried to use relatively harmless natural plant-based hair coloring agents long before using synthetic hair coloring agents, the main reason they are rarely used today is tha...

AI Technical Summary

Problems solved by technology

The use of synthetic hair coloring agents is not only possible to cause allergies, but also has the risk of cancer after skin absorption

In addition, hair dyed with synthetic hair colorants will lose a lot of protein, water and lipids, which will damage the hair quality

[0004] Although humans have tried to use relatively harmless natural plant-based hair coloring agents long before using synthetic hair coloring agents, the main reason they are rarely used today is that the coloring effect is not ideal (for example, dark brown after coloring) not deep enough)

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