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Color won't hold in previously high-lift colored hair. Why mot? There are a couple of factors here.
The main factor is that so much of the color pigment has been removed by the high-lift tints that a filler (or staining product) must be used prior to tinting. The next problem is probably the condition of the hair. If the hair is in poor condition it is weak and the cuticle or outer layer is open so that nothing can remain inside the hair shaft where permanent color needs to penetrate and stay—it is vital to see a professional when this occurs.