Llongueras hairdressing products. COLOR ADVANCE hair color # 6,1-dark ash blonde. Permanent coloration that offers 7 benefits in 1. Its formula contains ultra conditioner that helps to detangle and controls frizz and hyaluronic acid is hydrating. It offers 100% gray coverage, an intense and brilliant color for up to 5 weeks, protects the cuticle, nourishes and controls frizz.