Why do some herbal hair colors create a green tint

A green tint after a herbal hair color may seem worrying, but it’s completely normal. This cool undertone, sometimes visible on light or bleached hair, naturally fades as the pigments complete their oxidation process 💚

1. Why this green tint appears

It’s simply a temporary optical effect caused by the presence of indigo — a natural blue pigment — applied over a blonde or bleached base. The mix of the hair’s yellow tone and the blue of indigo can produce a greenish hue for a few hours or days, until the color stabilizes.

2. Why it’s very rare with Tresse Paris

At Tresse Paris, this phenomenon is exceptional. Our pure, finely micronized plant powders ensure even pigment distribution, free from impurities or heavy metals. Every batch of indigo and henna is laboratory-tested to guarantee consistent quality and balanced oxidation. The result: the color evolves naturally to its final shade, without unwanted reflections.

3. Why it mainly affects light hair

Very light, white, or bleached hair has a smoother surface and higher porosity. It absorbs pigments more quickly but less evenly, which can initially create this tint. It fades quickly as the color oxidizes in contact with air.

4. Should you intervene?

No, absolutely not! There’s no need to add copper henna or redo the coloring: the green tint fades naturally within a few hours or days, as the pigments finish oxidizing. This process is completely natural and harmless to the hair fiber.

5. How to prevent it

  • Never apply indigo directly to bleached hair without first using a copper henna base.
  • Perform a hair detox before coloring to remove chemical residues.
  • Follow the recommended water temperature (60–65 °C) to properly activate the pigments.

6. In summary

The green tint is neither a “mistake” nor a chemical reaction. It simply indicates that natural pigments are still oxidizing. With Tresse Paris, thanks to the purity of our selected plants and the control of our formulas, the color always stabilizes into a balanced, natural, and luminous shade 🌿

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