Can I store leftover hair color mixture?

February 13, 2017

No, once the product has been mixed, you should use it immediately and dispose of any leftovers. Because the hair color ends its process after about 50 minutes and the hair color no longer has any effect.

This means that the hair color ends the chemical process and loses pigments. There will be no change.

That's why nothing can happen to the hair if it's left on for a longer period of time, except that the hair color turns out a little darker than desired.

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