answersLogoWhite

0

20 Volume (or 6%) developer will lift hair 2 levels and 40 Volume (or 12%) will lift hair 4 levels.

User Avatar

Wiki User

15y ago

Still curious? Ask our experts.

Chat with our AI personalities

JordanJordan
Looking for a career mentor? I've seen my fair share of shake-ups.
Chat with Jordan
ProfessorProfessor
I will give you the most educated answer.
Chat with Professor
BlakeBlake
As your older brother, I've been where you are—maybe not exactly, but close enough.
Chat with Blake

Add your answer:

Earn +20 pts
Q: What is the difference between 20 volume and 40 volume hair developer?
Write your answer...
Submit
Still have questions?
magnify glass
imp