I've never did anything to my hair. It's in perfect condition and I haven't put any color in it since I was born, now I just want to put in a little red in my hair. My hair is a gorgeous dark brown and I don't want to ruin it's texture or color. I'm planning on getting Streekers temporary red hair dye. Does it really work? Does it come completely off?

If you are going to bleach your streaks before applying the red hair dye, it won't come off.
If it is a non permanent red spray or non permanent mousse it will come off, it will fade after a few washes, make sure you read the label on the packaging before buying it.
It should say non permanent color will come out after so many washes.
You can also ask your hairdresser for help or a beauty supplier.
Good luck