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40 Vol Developer

40 Vol Creme Developers

40 vol creme developers are the strongest of hair developers, offering multiple levels of lift with permanent hair colour, and suited for hair that is difficult to colour. Using a developer will help to lift and deposit colour to the hair cuticles. 

Only for Professionals

When you colour and bleach hair, the hair structure changes. Since 40 vol is a high strength, it's advised against using it if the hair structure is already compromised. That could be damage from frequent use of heat tools, previous colouring or even sometimes chemical changes such as pregnancy.

If used on already damaged hair, it can cause hair breakage and if used incorrectly, even chemical burns. This is why these developers are for professionals and if you have any questions about suitability using with bleach powders, toners, or any other questions, our hair colour experts are always happy to help you out.

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    7 products

    Your Questions Answered

    40 volume developer is a potent solution used in hair colouring and lightening. This solution contains high levels of hydrogen peroxide, which opens the cuticles, allowing hair dye or bleach to thoroughly penetrate for a significant colour change or lightening effect. Be sure to carefully read the product instructions to avoid potential hair damage.

    40 volume developer can be damaging to hair if not used properly due to its high concentration of hydrogen peroxide. High levels of hydrogen peroxide can damage hair and cause dryness and breakage.
    Be sure to follow all the provided instructions carefully to avoid hair damage.

    40 volume developer can be an effective solution for lightening black hair. Due to its high levels of hydrogen peroxide, the 40 volume developer opens the cuticles, allowing for a more pronounced lightening effect. Make sure to read all the instructions carefully, as hair damage can occur.