Wella Professionals Koleston Perfect permanent hair color in shade 6/4 Dark Blonde Red achieves long-lasting, intense color results. This professional hair color product offers reliable, even coverage with a 60 ml formulation for consistent application. The permanent color formula creates rich, dimensional color that maintains its intensity over time, suitable for a range of color changes from subtle enhancements to more noticeable shifts. As part of the Wella Professionals line, this product meets professional standards for color performance and reliability. The shade 6/4 combines dark blonde tones with red undertones for a warm, dimensional color result. The permanent nature of this hair color ensures that the color remains vibrant through multiple washes, making it ideal for those seeking long-lasting color retention. The 60 ml size provides enough product for complete hair coverage depending on hair length and thickness. This hair color product is formulated to work effectively on various hair types when used according to professional guidelines. The Koleston Perfect line is known for its color accuracy and consistent performance in professional color applications. The product requires correct mixing and application techniques for optimal results, adhering to standardized professional coloring procedures. The formulation is designed to provide even color distribution and reliable gray coverage when applied properly. This permanent hair color represents a professional solution for achieving and maintaining individual hair color with long-lasting intensity and dimensional tone development.