are simple: the longer you leave the dye in, the more intense the color will be. But, be careful not to overdo it, or you'll be singing the blues - literally, if you're going for a blue hair color! The recommended time is usually between 20 to 45 minutes, but it depends on the type of dye and your hair type, so don't just set a timer and forget about it.
For example, if you're using a semi-permanent dye, you can leave it in for about 20-30 minutes, while a permanent dye might require 30-45 minutes. And, if you're using a hair bleach, well, that's a whole different story - you'll need to follow the instructions to the letter, or you might end up with a head full of brassy, orangey hair that's more suitable for a traffic cone than a human being.
Now, you might be wondering, what happens if I overprocess my hair? Well, let's just say it's not a pretty sight - your hair might become overly dry, brittle, and prone to breakage. It's like leaving a steak in the oven for too long - it becomes tough, dry, and completely unappetizing. So, be sure to follow the instructions, and don't get distracted by your phone or your favorite TV show while the dye is processing.
