What is the difference between 20 and 40 volume developer

HOWEVER , many color lines spend years formulating a specific developer to best work with their color formula and thus lift, tonality, longevity and consistency can only be guaranteed when using the ideal partner products. The hair will no longer be virgin and it will shift the natural shade, however, it will not offer grey coverage or lift.

Its role is as an activator for the color and will typically be in developers specifically made for glazes and toners. When used with bleach, 5 volume can create a very slight shift in the hair, which is great for fragile baby hairs needing only levels of lift.

Similar to 5 volume, 10 volume can be used with permanent color lines for depositing color, however, it will not offer much grey coverage or lift. If the hair is a finer fabric it could over a slight one level lighter shift in base color and grey blending. Ten volume is also the default developer for many toners and glazes, however, keep in mind that this higher volume developer means a possible shift to the natural base color.

When 10 volume is used with bleach it can give levels of lift depending on the bleach, the method of application, and the hair. Twenty volume will give levels of lift when used with permanent hair color. On finer fabrics it may even give up to 3 levels of lift. It is the standard developer for grey coverage, however, a stronger developer may be needed for more resistant hair types. Twenty volume should not be used as a developer for toner or glazes especially when wanting to maintain a natural base.

This combination steadily opens the cuticle and consumes the pigments while allowing time for the rest of your application. It can also be used for grey coverage on more resistant hair types.

Thirty volume should never be used for basic deposit only color as it will blast the cuticle for no reason. When used with bleach and foils 30 volume works fast and may incur the risk of over-processing.

This developer is more ideal for open-air processing which incubates less heat. Applications with 30 volume should never be placed under heat and should be monitored regularly and ideally, a test strand should be performed prior to use. Open-air processing such as balayage is ideal for 40 volume developer as it allows for maximum lift but the control of less heat.

Bleach, forty volume, and foils can be a dangerous combination, so tread carefully. In recent years developers of 50 volume and above have become increasingly popular due to all the popular hand painting techniques. As trendy as these may be we must be careful and always consider the desired end result and the integrity of our client's hair. These developers are not made to be used in foils or with color.

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The higher the number is the stronger the developer is and it therefore more lightens hair. Choose concentration of developer according to how distinct you want to achieve hair lightening. Type of your hair can also influence the color result.

For example, fine hair is easy to become lighter, color faster penetrates into the hair fiber. While thicker hair may be more resilient during the dying process.

Observe to the following rules:. The quality of hair can also affects the coloring process. It's also very common that we have hair of different quality on our heads e. This website uses cookies in order to be able to provide its services. By continuing to the site, you are agreeing to their use. To find out more, including the information on how to remove and disable them, click here.

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In stock 1. PET show all. Tangle Teezer. In stock SALE show all. Wella Professionals. There are few cases where you would need to apply developer on its own though. Any lightening process will damage your hair.

Developer is a active creme for the liquid dye and creme dye color. Developer by itself has a slight lightening effect on your hair. If you use a 20 volume developer, you would lighten your hair up to one shade. Once the exposition time has passed, rinse your hair with a lot of water and wash it with a sulfate-free shampoo.

If it is way too runny, you may end up lightening the hair, but not depositing enough color. It will end up thinner, flatter and last less long. Yes, you can mix 20 vol and 40 vol to get 30 vol! The volumes are percentages of peroxide. To darken hair, 20 volume developer should be used, and no more than that. Now, everything depends on the base tone of your hair.

If you can only use either the 30 or 40vol developer, limit it to 20mins. The extra strength may damage your hair if you leave it longer. Use whenever coloring directions call for 20 volume developer. Know when to go lighter — or darker.