When considering the application of foil highlights, one might ponder the crucial question: should I wash my hair before undergoing this transformative procedure? Is there a definitive answer, or does it depend on several factors? What about the condition of my hair? For instance, if my hair is laden with product build-up or oil, could that potentially hinder the absorption of the dye? On the other hand, washing it too close to the appointment may strip away natural oils, which might protect the scalp during the coloring process. How do various salons approach this dilemma? Do some hair professionals advocate for freshly washed hair, while others stress the importance of leaving it unwashed for optimal results? What role does the type of product used in the highlights play in this decision? As I weigh these considerations, I can’t help but wonder: what would be the best practice for ensuring vibrant, long-lasting highlights without compromising the health of my hair?