Tag Archives: dye

Monday, July 23, 2012

Let’s Get Geeky – Permanent Haircolor

Haircoloring products generally fall into four categories: temporary, semi-permanent, demi-permanent and permanent. Today I will explain the chemical action of permanent haircolor, which, along with demi-permanent formulas, is most widely used in salons. Permanent haircolor is most often used when 1) covering grey hair and/or 2) a shade lighter than the natural shade is desired.…
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