Whats the difference between using a 20 or 30 developer for red hair?

Question

I have recently died my hair red.. and I always used the 20 developer but I ran out. My mom has a 30 developer stored up in her closet somewhere.. if I were to use the 30 what difference would happen to my hair? Or would it be the same? I dont want to buy a new developer .. what should I do?

Answer 1

Feria is a big waste of money. I've used it a couple instances (in amazing colors) and underneath no instances as quickly as have I had my hair come out the way in which where I wanted it to. If the strand scan works with the reverse developer, that you simply might furnish it a are attempting, however you possibly safer simply getting but one other organization.

Answer 2

20,30,40 volume is for lightening. Each one equals the amount of levels that your hair will lighten (20=2, 30=3, 40=4) if you're coloring your hair (not using bleach and depositing color) use 5 or 10 volume only, otherwise the color will be lighter and washed out.

Answer 3

Developer 30 is much stronger , but nothing bad will happen it will just be a ligher brighter red so don't worry about it <3 xxxx