So if you’re starting out as a level 6 dark blonde, 20 volume developer will lighten your hair color to level 7 medium blonde. You can achieve more lift (up to 2 levels) by mixing 20 vol developer with bleach. Can I leave bleach on my hair for 20 minutes? Dilute a portion of the peroxide with an equal amount of water. Soak some cotton wool in this solution and use it to dress the wound as required. When you are using stronger volume developers like 30 or 40, remember that these may cause unwanted damage to your hair. Use vol.30 only if you have a dark hair tone. Why dilute 30 volume developer to 10? But not all developers have equal cuticle- and color-lifting power. The weakest developer, 10 volume, is only used to deposit color and won’t lift because it contains only 3% peroxide. For a few days before bleaching your hair, use gentle shampoos, such as ones that are sulfate-free, to avoid stripping your hair of nutrients.

The longer you can wait before bleaching your hair again , the better your hair will fare. But you can bleach your hair again after about 2 weeks without causing too much damage.

Pharmacy product

Warmer pigments, such as orange, are harder to break down for developers. When you leave bleach in for too long, it strips away all of the cooler pigments, exposing your hair’s bright orange tones to full view. Every person’s hair is different, and you should be mindful of your own hair’s needs before deciding how long to leave 20 volume developer in your hair. Here are a few guidelines that can help you plan for how long to leave bleach in your hair. These are common cases you may meet when you use 30 volume developer. When compared to 20 volume developer to lighten hair, the latter seems to be more dangerous to use. However, under proper instruction on how to use it, your sufferings will be paid off because thanks to its strong level, you can immediately achieve gorgeous hair colors and styles of celebrities. Can I use 20 volume developer to lighten hair at home and by myself? The finer your hair is, the less time it will take to process and lighten up to 2 color levels. You may find that your hair is fully lightened after 10 minutes of processing time with 20 volume developer if you have very fine (or blonde) hair.

If you need to lift your color more than 2 levels, you’ll have to use 30 volume or 40 volume developer (not recommended for at-home use). How long should I wait between bleaching sessions? If your hair is light, to begin with, then you will only need to leave the developer in your hair for a few minutes. If your hair is darker, you may need to leave it in for longer. Apply to clean hair and leave to develop according to the service you are providing and product guidelines (standard development time is 40 minutes).

Why are we processing data?

To share a fact, box dyes usually come with 20 vol. developer. 30 volume developer is usually used to lift the hair color. The values as also explained in the chart above for this combination would be 1:1 (the first number is the developer and the second is water). Why dilute 40 volume developer to 20? On the contrary to temporary color, permanent dye permanently changes the color of your natural strands. It only disappears when you remove it with specially designed products such as baking soda and vinegar. As we understand, equal portions of 20 developer and distilled water or normal tap water give us volume of 10. By doing the same process, you can also create volume 5 from volume 20 developer.