Permanent SoColor Reflect formula—pure tone with no undertone, crafted for vibrant, true-to-tone results. Blended with Matrix’s Bond-Protecting Concentrate, which helps safeguard the inner hair structure with repeated use. This shade, SR-RV .62 (SoRed Red-Violet), offers 100 % gray coverage, long-lasting vibrance, and a nourishing finish. Ideal mixing ratio is 1:1 with developer (10, 20, 30, or 40 Vol), and a processing time of 30–45 minutes