However, I understand you're asking about how long hair dye typically lasts. That depends on a few factors:
* Type of dye: Permanent dye lasts longer than semi-permanent or temporary dye.
* Hair type: Thick, coarse hair tends to hold color longer than fine, thin hair.
* Hair care routine: Using color-safe shampoo and conditioner can help extend the life of your dye.
* Frequency of washing: Washing your hair less often will help preserve the color.
Generally, semi-permanent dye will fade gradually over a few washes, while permanent dye can last for several weeks or even months.
Is there anything else I can help you with today?