I bought revlon black hair dye.. and was wondering...?

can i dye 2 pieces of hair to see it and save the rest.. does hair dye get too old to use??





can i use the dye more than once? i only wanted to put it on a little portion of my hair.I bought revlon black hair dye.. and was wondering...?
Once the contents are open they begin to degrade and break down rendering them one day , usless.. the chemicals in them as well may alter and not function as they are supposed to.





You can try misxing only a certain amount up for what you need and then capping the rest, I would not leave it more than a couple days though.





When and if you do only use a bit dont mix the entire contents together.. mix a bit seperatly in a glass or other non metal bowl.





If you read the instructions that came with the Dye it will tell you pretty much the same thing.I bought revlon black hair dye.. and was wondering...?
if you just want to test pieces of your hair, then you shouldn't mix the products. here is what you do. you very itty bitty small portion of each mixture you were given and get a small bowl. mix them in the bowl and smear it onto the hair you want to dye. dont mix the products together in the bottle unless you plan on dying your hair right away.
I do it all the time. Use half and half portions. As long as you keep each dye in it's own container, don't mix what your not using.
Usually in the directions,


it says it's only good up to a half and hour after being mixed.





So probably not.