Developing Creme
Printed From: HairBoutique.com
Category: Hair Talk
Forum Name: Hair Color
Forum Description: The tricks and tribulations of changing your hair color
URL: https://talk.hairboutique.com/forum_posts.asp?TID=18999
Printed Date: July 27 2025 at 6:46am
Topic: Developing Creme
Posted By: amfields930
Subject: Developing Creme
Date Posted: October 23 2004 at 3:33pm
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What is the difference between 20, 30 and 40 vol creme? I'm getting ready to dye my hair dark ash brown, but all I have is 40 vol oreor creme from loreal.. is that going to be OK?
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Replies:
Posted By: korsakovhatt3
Date Posted: October 23 2004 at 5:01pm
40 is the strongest. It processes faster, but it can also be more damaging. I think most OTC products use 20 vol.
I'm not a pro. Maybe someone else will have an opinion on whether you should use it.
P.S. If I'm not mistaken, 40 vol is usually used for lightening because it contains more peroxide. Is the dark ash brown darker or lighter than your natural colour? If you're going darker, I think you would probably be better off using 20 vol. if you can get some. I think 40 vol. would give you unpredicable results -- maybe too much warmth. If you use the 40 vol, make sure you do a strand test first.
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