Matrix SoColor Permanent Blended Hair Color Chocolate Light Brown 5M, 5.5 with Pre-Bonded Formula provides rich, vibrant color with long-lasting, fade-resistant results. The Pre-Bonded Formula protects hair from damage during the coloring process, ensuring optimal hair strength and shine. This permanent color offers full grey coverage, leaving your hair soft, smooth, and healthy-looking, with results that last up to 8 weeks. Ideal for natural, multi-dimensional chocolate light brown hair.