Colour Undo works by essentially reversing the hair coloring process, targeting the artificial dye molecules. It doesn't remove your natural hair pigment; instead, it aims to remove the artificial color that has been deposited.
Here's a breakdown of the process:
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Shrinking the Dye Molecules: Colour Undo treatments contain chemicals that cause the artificial dye molecules in your hair to shrink significantly. These molecules are typically larger and get trapped within the hair shaft after coloring.
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Washing Away the Color: Once the dye molecules are shrunk, they become small enough to be washed out of the hair. The Colour Undo product facilitates this process, helping to lift and remove the artificial pigment during rinsing.
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Revealing the Underlying Shade: After the artificial color is removed, what remains is the hair's underlying color. This might be your natural hair color, or it might be a lighter shade if previous coloring processes involved bleaching or ammonia, which can lighten the hair's natural pigment.
Important Considerations:
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Not a Colour Corrector: Colour Undo primarily removes artificial dye. It won't correct uneven tones or fix coloring mistakes like brassiness. It simply removes the layers of artificial color to reveal what was underneath.
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Multiple Applications May Be Needed: Depending on the darkness and build-up of the artificial color, multiple applications of Colour Undo might be necessary to achieve the desired result.
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Hair Condition: Colour Undo can be drying to the hair, so it's essential to follow the instructions carefully and use conditioning treatments afterward to restore moisture and prevent damage.
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Potential for Uneven Results: If your hair has been colored multiple times with different colors or has uneven porosity, the Colour Undo might not produce perfectly even results.
In essence, Colour Undo is a process that shrinks and removes artificial hair dye molecules, revealing the color underneath. It's a useful tool for removing unwanted color, but it's not a magic solution and might require additional steps to achieve the perfect result.
