I want to dye my hair, but the bottle doesnt say how long to leave it on.?

This ones a bit tricky... I bought a bottle of loreal classic salon red and the only directions it says is "mix with 2 oz of 20 to 30 volume developer." I only have 40 volume, but im not really worried about that (unless someone thinks i should be... haha)..

how long do i leave this color on?

I want to dye my hair, but the bottle doesnt say how long to leave it on.?

This is when a strand test comes in handy! Put some on a small section of your hair and keep checking it every 5 minutes or so until you get your desired level. Then use that time when you finish your entire head. Since you have 40 volume, it will take faster to get your desired level so leaving it on as long as you would with a 20 volume will only damage your hair. There is really no 'average' time to leave color on hair, everybodys hair takes different to color!

I want to dye my hair, but the bottle doesnt say how long to leave it on.?

Usually when I dye my hair the bottle says 20-30 minutes

I want to dye my hair, but the bottle doesnt say how long to leave it on.?

Usually 20-30 minutes.

I want to dye my hair, but the bottle doesnt say how long to leave it on.?

leave it in for 20 min., then put in on the roots, and leave it on for an additional 10 min.

I want to dye my hair, but the bottle doesnt say how long to leave it on.?

depending on depth of colour required no longer than 45 mins about half hour is the norm for any brand

I want to dye my hair, but the bottle doesnt say how long to leave it on.?

Dying your hair is something you do when you make your hair darker, lightening is the term when making your hair lighter with out bleach. 40 volume developrer is a pretty high volume to use, it will lighten when used on any color hair %26amp; may damage when left on too long or mis-used.

To answer you correctly I really need to know the color of your hair, are you naturally a dark brunette who colors your hair red? do you currently have dark roots with already colored ends? If you are light haired and going darker to a red then you should really use 10 volume or at maximum of 20 volume. 10 volume will lift the cuticle of the hair just enough to deposit color. 20 volume will lighten (just a little first 1-2 shades) then it will deposit the color. No need to leave on more than 20 - 30 minutes it will stop oxidizing it self. Using 40 volume will dry your hair and potientally make it brittle or break off if you do not use it correctly.

You can dilute you 40 volume with bottled or distilled water 1/2 %26amp; 1/2 to make 20 volume

To make 10 volume useing 40 measure 1/4 developer to 3/4 botteled or distilled water.

If you do not have botteled or distilled water put a pan on the stove and boil a small pan of water, let it cool before mixing with developer.

I want to dye my hair, but the bottle doesnt say how long to leave it on.?

well it depends on how vibrant you want the color to be. I just did mine for the first time ever at home the other day and i left it in for about 10 - 15 minutes - the longer it was in the brighter the color it turned out to be

I want to dye my hair, but the bottle doesnt say how long to leave it on.?

I don't know, I have never dyed my hair. But congrats on the decision to go with RED hair. I hereby grant you honorary redhead status. =)