Hair Coloring and Damage

Blonde woman worried about hair damage
 
Q: Will coloring damage my hair?
 
A: All permanent hair coloring processes use hydrogen peroxide to develop the color. This has the effect of raising the cuticle layer to enable the penetration of the hair shaft by the color molecules. Even deposit-only permanent hair color raises the cuticle. This can be damaging to your hair.
 
If you have darker hair and are trying to make it lighter, then you have to use stronger formulas of peroxide. The same goes for hair lighteners which have to open the cuticle enough to allow the peroxide and bleach to disperse the color molecules already in the hair shaft. The lighter you go from your natural color, the more damage that can and will occur as a result.
 
A raised cuticle allows moisture to pass into and out of the hair more readily. Many of the hair coloring kits on the market today include acid-balancing conditioners for use after coloring to "seal" the hair. This means that they help to contract the cuticle layer back to a more normal state. This makes the color last longer and also helps the hair to stay healthier and retain its necessary moisture.
 
The best hair color formulas include conditioning agents in the hair color itself, which in a deposit-only hair color (where the hair's level is not lightened at all) can leave the hair feeling healthier than before it was colored. The key is to choose your hair color wisely and be wise about the results you want to achieve.
 
You should never try to lift your hair's level more than 3-to-4 levels in one process. I, personally, recommend that women never try to lift their level more than 3-to-4 levels, period. Even with jet-black hair, 3-to-4 levels of lift are sufficient to give you a wide variety of colors to choose from. To try to lift the hair further (for example, from dark brown to pale blonde) is only asking for trouble.
 
Remember, once hair has been too severely damaged, there is nothing that can be done to repair it and you can only minimize the appearance of the damage.
 
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See also:
 
How to color hair
 
How decolorizing hair works
 
How to recognize hair with damage
 
Does semi-permanent hair color damage hair?