Bleaching damages hair extensions !!!!
I find that when dying hair extensions its better to use a non ammonia permanent hair dye (ex. Clairol Permanent Dye) than to use a bleaching product that strips the hair of everything (ex. Beauty Max Peroxide).
Using permanent dyes to lighten the hair helps to perserve the state of the extensions and gives it a more natural look. The lightening process will take a little more time than bleaching but u’ll find that doing this helps the hair last longer. Why pay all that money for extensions just to damage it with bleach ??