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Developer for hair color

What must never be missing when coloring hair is the developer! It is also known as developer, oxidant, or emulsion. Without it, coloring or bleaching would not be possible, as it removes the natural pigments contained in the hair and perfectly prepares it for a new color. Hair colors must be mixed with the developer in the correct ratio before application.

What is a developer used for?

A developer serves several functions during the hair coloring process:

  • It ensures a creamy consistency so that the dye does not drip and can be applied more easily.
  • It activates the color, making the color intensity more vivid, radiant, and long-lasting.
  • It triggers a chemical process within the hair that is essential for the coloring effect.
  • It is crucial for lightening the hair color — without the developer, this would not be possible.

Proper use of developers

Here are some important tips for handling developers:

  • Mixing a developer with water to reduce its concentration does not work.
  • An opened hydrogen peroxide developer does not last longer than one year.
  • Do not store hydrogen peroxide in conditions that are too warm or too cold. The best storage is at room temperature in a dark place away from direct sunlight.
  • Developers are available in both creamy and liquid forms.

Which developer should be used and when?

Before coloring or toning hair, several questions often arise: Which developer should I use to ensure good color coverage? Which developer should I choose for lightening? And how can I still protect my hair in the process? To achieve the desired results when coloring hair, a few basic principles should be followed.

Developers are available in different concentrations, ranging from 1.9% to 12%. The percentage indicates the amount of hydrogen peroxide contained. The higher the percentage, the greater the lightening effect on the hair. For professional hair colors, developers from the same product line or brand should always be used.

Aside from the desired result, hair type also plays an important role in choosing the right developer. Fine hair absorbs color more easily and lightens faster, so a lower hydrogen peroxide concentration is recommended. For thicker or stronger hair, it’s the opposite — a higher hydrogen peroxide concentration is usually needed to achieve sufficient lightening.

Developer 1.9% to 2.9%

Oxidants with low concentrations are mainly suitable for toning hair. They can maintain the same color tone or make the hair darker. Since gray hair is not completely covered, these developers are only suitable if the base hair color is not gray.

Developer 3%

A 3% developer is also suitable for toning. The concentration is still low, which means it is only appropriate if the color is not intended to lighten. For stronger lightening, a developer with a higher percentage must be used. Coloring tone-on-tone or darker is also possible. Red toners achieve their best results with a 3% developer. Gray hair is covered up to 50%.

Developer 4%

Even with a 4% developer, we are still talking about toning rather than full coloring. However, it allows for more intensive toning and achieves up to 70% gray coverage.

The advantage of low concentrations is that they are gentle enough for fine or thin hair and do not overly stress these hair types.

Developer 6%

Developers with 6% concentration are used when the hair color is to be lightened or changed by one tone. This oxidant is the most commonly used, as it contains a moderate amount of hydrogen peroxide. With this developer, gray hair is also well covered. A 6% developer opens the cuticle layer of thick hair, allowing the color to penetrate effectively.

Developer 12%

Strong lightening of the hair is only possible with a high hydrogen peroxide concentration. A 12% developer is not recommended for use by non-professionals and should always be handled by an expert. If applied incorrectly, it can dry out or even break the hair. It can achieve a lightening of three to four levels. Important: this developer should never be used for bleaching.

Buy developers online at BellAffair

The developer is an essential component when coloring hair. When purchasing professional hair colors from BellAffair, a developer should always be included in your shopping cart.

Frequently Asked Questions

How strong should the developer for hair color be?

  • 1.9% to 2.9%: for toning only, when the color should remain the same or become darker
  • 3%: for more intense shades such as red and copper, with up to 50% coverage
  • 4%: for intensive toning with up to 70% coverage
  • 6%: for tone-on-tone coloring or up to one level of lightening
  • 9%: for two to three levels of lightening
  • 12%: for strong lightening, recommended only for professional use — up to three to four levels of lightening

What is the correct mixing ratio for hair color?

The hair color and developer are first mixed together and then applied to the hair. This is usually done in a ratio of 1:1, 1:1.5, or 1:2. The correct ratio depends on the desired level of lightening. It’s important to mix the color and developer thoroughly for one to two minutes before application.

Can developer be applied directly to the hair?

No, a developer is meant to be used together with hair color to achieve the optimal lightening and coloring result.