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Mixing Permanent Hair Dye with Developer

Published in Hair Coloring 3 mins read

How to Mix Hair Color

Mixing hair color correctly is crucial for achieving your desired results. The process varies depending on the type of hair dye and the desired outcome. Generally, you'll be mixing hair dye with a developer.

The most common ratio for mixing permanent hair dye with developer is 1:2, meaning one part hair dye to two parts developer. For example:

  • 2 oz hair dye + 4 oz developer
  • 100 ml hair dye + 200 ml developer

This ratio is confirmed by multiple sources, including Cosmetic World and many YouTube tutorials. However, some sources suggest alternative ratios:

  • 1:1 ratio: This is sometimes recommended for certain hair colors or when less lightening is needed. See this YouTube video for details on mixing at this ratio.
  • 1:1.5 ratio: Another option, offering a middle ground between a 1:1 and a 1:2 ratio. This ratio provides a balance between lightening and color saturation. This is mentioned in this blog post.

Always follow the instructions provided with your specific hair dye product as ratios can vary slightly by brand and product type.

Mixing Different Hair Dyes

Mixing different hair dyes is possible, but it requires caution. While some professionals and YouTubers demonstrate this technique (Reddit thread), it’s important to note:

  • Use dyes from the same brand: This minimizes unpredictable reactions.
  • Test a small strand: Before applying to your whole head, test the mixed dye on a small, hidden section of hair.

Mixing dyes of varying permanence (temporary, semi-permanent, permanent) can lead to unpredictable results. It’s generally best to avoid mixing different types of dye. (Reddit thread)

Important Considerations

  • Use a non-metallic bowl and applicator: Metal can react with the hair dye. Plastic or glass are ideal. (Reddit thread)
  • Gloves are essential: Protect your hands from staining.
  • Follow instructions carefully: Each hair dye product has unique instructions.

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