Matrix Socolor Extra Coverage 507N Dark Blonde Permanent Hair Color 3 contains natural conditioners that provide long-lasting, healthy, natural-looking hair color with outstanding shine and condition. The SoColor Extra Coverage can help you lighten, darken, or maintain your current hair color in a few easy steps. Matrix SoColor is a low ammonia, permanent cream hair color. Mix 1:1. ATTENTION: These products require professional expertise. The seller is not liable for any adverse outcome resulting from the use of this product.