Compound Henna discusses the addition of metallic salts and other dyes to henna, and how these created conflicts with chemical hair dye.
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Index of specific topic in this chapter:
Page 3: Compound henna, rasticks, henna-reng, henna-rasticks, and metallic salts
Page 33: Henna mislabeling, misinformation and disinformation
Page 50: Para-phenylenediamine and henna
Page 87: Walnut, Silver Nitrate, and Para-phenylenediamine as Brunette Hair Dye
