publication . Article . 2019

Iron Gall Ink Revisited: Natural Formulation for Black Hair-Dyeing

Sang Yeong Han; Seok-Pyo Hong; Eunhye K. Kang; Beom Jin Kim; Hojae Lee; Won Il Kim; Insung S. Choi;
Open Access
  • Published: 01 Apr 2019 Journal: Cosmetics, volume 6, page 23 (eissn: 2079-9284, Copyright policy)
  • Publisher: MDPI AG
Abstract
Inspired by the iron gall ink that has been used since the Middle Ages, we formulated a hair-dyeing solution for blackening hair. The ingredients in the formulation have been approved as cosmetic ingredients, including tannic acid, gallic acid, and Fe(<span style="font-variant: small-caps;">d</span>-gluconate)<sub>2</sub>. The formulation does not require any harmful oxidizing agents, such as hydrogen peroxide&#8212;the Fe(II) cations bound to tannins are oxidized spontaneously upon exposure to air and form the blackish Fe(III)-tannin nanocomplex that coats hair firmly. In our study, we show that the dyed color did not fade under sunlight exposure for at least t...
Subjects
Medical Subject Headings: integumentary systemsense organs
free text keywords: Black hair, Dyeing, Iron gall ink, Tannic acid, chemistry.chemical_compound, chemistry, Gallic acid, Cosmetic industry, Organic chemistry, Oxidizing agent, hair dyeing, Fe(<span style="font-variant: small-caps">d</span>-gluconate)<sub>2</sub>, QD1-999
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publication . Article . 2019

Iron Gall Ink Revisited: Natural Formulation for Black Hair-Dyeing

Sang Yeong Han; Seok-Pyo Hong; Eunhye K. Kang; Beom Jin Kim; Hojae Lee; Won Il Kim; Insung S. Choi;