Why do blondes go brassy and green ? When hair is coloured, youve got a little rainblow of colour molecules (red, yellow and blue) which are deposited into the hair cuticle. Because blue ones are the smallest, these are the molecules that disappear the first, leaving you with mostly red and yellow. Those shades produce orange and therefore tha tell-tale brassy tinge. Going green is more of a blonde problem. Blondes may not have all the fun where chlorine is concerned; steer clear of over exposure to the pool, as chlorine will deposit itself more and more into the hair shift. Blonde hair doesnt contain a lot of colour pigment and is generally more porous so will readily absorb whatever it is soaked in. Technically, the chlorine causes hard metals such as copper and iron to oxidise in the swimming pool water. Its essentially the same process that happens when rain and the elements turn copper on buildings into a greenish turquoise. Blonde, platinum, white or grey hair often display a greenish tint after repeated exposure to the oxidised hard metals floating around chlorinated swimming pools. Its the metals, not the chlorine, that actually cause tha hair to change colour. This can be combated with a purple shampoo. These silver shampoos contain blue, violet pigments to naturalise tha orange, yellow pigments and shut the brassiness down, restoring colour to its former glory.
Posted on: Tue, 01 Jul 2014 15:00:00 +0000
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