Wednesday, November 16, 2011

hair color and hairstyles

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The four most common classifications are permanent, demi-permanent (sometimes called deposit only), semi-permanent, and temporary.



Stylish Hair Coloring


The most popular way to achieve permanent hair coloring is through the use of oxidation dyes. The ingredients of these products include 1,4-diaminobenzene (historically) or 2,5-diaminotoluene (currently), a coupling agent, and an oxidant. The process is typically performed under basic conditions.



Hair Styles with Color


The mechanism of oxidation dyes involves three steps: 1) Oxidation of 1,4-diaminobenzene derivative to the quinone state. 2) Reaction of this diimine with a coupler (more detail below). 3) Oxidation of the resulting compound to give the final dye.





hair dye-hair dye colours-hair



Blonde Hairstyles 2009 Hair



Gallery Hair Color Asian



Hair color