Hair products Llongueras. Color Advance Hair Color #6.1 - Dark Ash Blonde. The permanent color that offers 7 benefits in 1. Its formula contains a conditioner ultra which helps to detangle and control frizz and hyaluronic acid is hydrating. It offers una 100% gray coverage, intense, shiny color for up to 5 weeks, protects the cuticle, nourishes and controls frizz.