Some people may still use discolored toner, and it could still function properly, but you may end up getting darker tones than you intend to.ĭue to the oxidation, some of the ingredients might not work as efficiently as before. Remember that toners target the opposite color. That could make your hair toner develop a darker color. Due to opening the seal, the process of oxidation can speed up due to air exposure. Some hair toners could appear clearer or of a lighter color than when you first opened them. If it looks way off, or like the chemicals have separated or discolored, dump it. When trying to figure out whether your hair toner is expired, you should use your senses. But before using it make sure to carefully check your hair toner first. However, the final decision is still up to you. If you are contemplating whether to use an opened toner or not, we suggest buying a new one for safety purposes - especially if it has been months since you’ve last used it. You can figure toner will last roughly 1-2 years after opening, but again, it depends how and where it’s stored. How Long Does Hair Toner Last After Opening?įor opened hair toners, the exact lifespan may be trickier to determine. That means that if it is already beyond that, since production, then it might not work as effectively as it should. Usually, your bottle of hair toner, if unopened will have a shelf life of about 3 years. However, not all manufacturers place an expiration date on hair toners because it isn’t required by law. The best indicator would be the expiration date that’s (hopefully) printed on the bottle. However, you must hold that thought and first determine if you can still use that toner or just throw it away. There’s just something about it that leads many of us to change our hair color.įinding that bottle of toner you didn’t finish years ago could have piqued your interest in going blonde again. Whether it be Daenerys Targaryen from Game of Thrones, Reese Witherspoon from Legally Blond, or Marilyn Monroe from, well… from the 1950’s, all of us are inspired by a beautiful blond. Does Hair Toner Expire? How Long Is Toner Good For?
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