dye release - all about the molecules baby! yeah!Posted by Kimberly (from BC) on May 17, 2004 at 00:05:17: In reply to: dye release - is there such a thing as waiting too long? posted by Barbara on May 16, 2004 at 18:56:37: ahh... where to start?Hair is more porus than skin and accepts larger molecules into the strands than skin does. Hair cells aren't as tightly packed together as skin cells (think of a hairstrand under a microscope: all rough and scaly with lots of places for henna dye molecules to lodge) Dye release: once the henna dye has been released it has a limited amount of time before it reacts with the air and becomes oxidised and darkens in colour. After the dye has oxidised the henna molecule is too big to enter the skin, which is why dye release is so important for henna body art. BUT Hair will still accept the larger oxidised dye molecules. (which is why you can used body art paste that's past it's prime to colour your hair with) so dye release isn't realy an issue when dealing with hair henna. the more dye the paste releases the more dye can go into your hair. Use good quality henna for lucious vibrant reds. hope this helps, kim
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