From Black to Platinum HairQ: Hi. I searched through your hair coloring question and answers, but could not find an answer to my exact problem, merely related ones. But the differences are where I am getting confused.
For the past 6 months or so I have been dying my naturally light brown hair a black color with a level 2 hair dye. So, it isn't permanent, but the black on my lighter hair does not fade and I mostly just retouch the roots. Lately I have been wanting to bleach it platinum and then maybe do some bright funky colors. Since my hair is in relatively good condition, I am not too worried about bleaching it, but I do wonder if its possible to go from black to platinum.
Years ago, I had dyed black permanent dye over bleached hair, and my stylist told me I couldn't go any lighter than a medium copper, but that hair is all grown out and my hair now has only ever been dyed with level 2 dyes.
I would appreciate any advice or information you can give me, as the only information I can find is either about lightening permanent dyes or merely lightening back to the natural color. Thank you!
A: Well, first of all, from what you describe, you are in fact using permanent hair color in the "level 2" dye you are applying to your hair. You see, temporary haircolors only last until the next shampooing, while semi-permanent and demi-permanent haircolors wash out in 8-12 shampoos. Any haircolor that stays on the hair so that you must retouch the new growth in order to maintain the uniform hair coloring must be permanent haircolor.
That being established, you need to consider the way hair color works. The color of you hair is determined by the amount of pigmentation in the hair. These pigments can be either naturally occurring - melanin - or chemically introduced through haircolor applications. The more molecules of pigment that are present in the hair, the darker the color will be. The exact tones and shading of the color depend on the types of pigment.
In order to make a person's natural hair color darker, you must add pigment molecules, and in order to lighten the hair color you must disperse these pigment molecules. On the whole, adding pigment molecules is generally less stressful on the hair than dispersing them, and in some cases can leave the hair looking and feeling healthier.
Dispersing the pigment molecules in the hair generally involves the use of a bleaching agent and peroxide developer mixed to penetrate the hair shaft by raising the cuticle layer and breaking up the pigment molecules. The lighter you want to make the hair, the more pigment molecules you must disperse and the harsher the process is on the hair.
It doesn't matter whether the pigments are naturally produced or chemically applied. Taking the hair from a dark original color to the lightest end of the spectrum is extremely hard on the hair. It is so hard in fact that most stylists refuse to lighten the hair beyond a certain point due to the level of damage that will result. For clients who really want to go from one color extreme to another, a stylist may work with him or her to arrange a schedule of services to take the hair from dark to very light in stages, with time in between to reparative therapies and conditioning.
You're best bet is to talk to your stylist about this type of planning and take your hair to the color you ultimately want in stages. The alternative is to risk seriously damaging your hair, which is not something I think you want.
The haircolor levels and peroxide developer
Bleach black hair to apply blonde flashes