20 Volume Developer Before And After. The higher number volume means that you will get more color penetration into. Hair color lift with 20 volume developer and baking soda. But you would need to leave the mixture on your hair for 40 to 60 minutes. The results can vary for people with textured black hair or fine blonde manes.
Blond forte perfect blond diy premium hair bleach lightening powder kit 6 20 volume developer bonus brush gloves white lightening powder walmart com in 2020 bleached hair hair track hairstyles. It’s like you diluted 30 to 20 volume developer by adding the same amount of the 10 volume developer into it. But if you added a volume 30 developer twice the amount of volume 10 developer, the calculation changes. It will be like the following. It is 9% plus 9% plus 3% divided by 3, which equals 7%, or you can call it volume 23 developer. Before any color application, apply pure 20 vol or 30 vol developer to the hair using cotton wool. It lightens quickly and its effects are harsher than lower concentrations. It is also recommended if you have thin or fine hair, as it will not be too strong. Before and after 40 volume developer on dark hair unlocks the hair cuticles lifting them.