Goldwell Dualsenses Blondes & Highlights Color Lock Serum is a professional treatment specifically for blonde and highlighted hair. The package contains 12 bottles of 18 ml, offering una intensive care that protects and prolongs color brilliance. Thanks to its advanced formula, it helps maintain brightness and prevent fading, providing una a soft and silky texture. Ideal for those who want visibly healthier, radiant, and vibrant hair in the tempo. Perfect for daily use or in the salon.