Clairol Soy4plex Gray Busters NN 4NN “Light Rich Neutral Brown” 2 fl ozClairol Professional Liquicolor Permanente Hair Color. 100% gray coverage, now with SOY4PLEX for up to 84% more deep conditioning. SOY4PLEX leaves hair deeply conditioned, with up to 61% more reflective shine, multi-dimensional color and long-lasting results. Liquicolor Permanente offers 57 inter-mixable shades. Featuring the new unified numbering system Clairol Professional Liquicolor Permanente into inter-mixable shades 4 tonal families: Neutral, Ash, Gold and Red 10 tonal pillars Key Benefits: 84% more conditioning than leading brands, 61% more shine, 100% gray coverage, long lasting, multi-dimensional, and same shade results with additional conditioning benefit of SOY4PLEX Technology creating healthy colored hair.