* Product Buildup: Oils, dirt, and product buildup can create a barrier on your hair shaft, preventing the dye from penetrating properly. This can lead to uneven color and a less vibrant result.
* Scalp Sensitivity: Dirty hair can irritate your scalp, making the dyeing process more uncomfortable.
* Damage: Dirt and product residue can clog hair follicles, potentially leading to scalp irritation and even damage.
Here's what you should do instead:
* Wash your hair with a clarifying shampoo 24-48 hours before your appointment. This will remove any buildup and allow the dye to penetrate better.
* Avoid using any styling products on the day of your appointment.
* Arrive with clean, dry hair for your appointment.
Exceptions:
There might be some exceptions, such as if you have a very dry scalp or have been advised by your stylist to do so. However, it's always best to consult with your stylist about their specific recommendations for your hair type and desired color.