Here's why:
* Toning, not bleaching: Orange tones come from underlying warm pigments exposed during the lightening process. Removing them requires a toner that deposits cool-toned pigments (blue or purple) to neutralize the orange. Vinegar doesn't contain these pigments.
* Acidity and Hair: Vinegar is acidic. While a diluted apple cider vinegar rinse can help balance pH and remove buildup, it's not a powerful bleaching agent. Excessive use of vinegar can potentially dry out your hair or damage it.
* Potential Slight Fading: In theory, the acidity of vinegar *might* slightly fade the overall color, including the orange tones. However, this effect would be very minimal and inconsistent. It wouldn't specifically target or effectively neutralize the orange.
Here's what *does* work to remove orange tones from hair:
* Toner: This is the most effective and targeted method. Use a blue-toned toner designed for brassy hair. Choose a level appropriate for your hair color.
* Blue Shampoo/Conditioner: These products deposit small amounts of blue pigment to neutralize orange. They are good for maintaining the tone between toning sessions.
* Professional Color Correction: If your orange tones are severe or uneven, consulting a professional colorist is the best approach. They can formulate a custom color correction plan.
In short, don't rely on vinegar to get rid of orange hair. It won't give you the desired results, and excessive use could harm your hair. Opt for a toner or blue-toned products instead.