Zotos Professional AGEbeautiful new Root Touch-Up Haircolor is a temporary spray designed to conceal gray roots in seconds, but also add volume. The quick-drying formula, which comes in eight shades, is ideal for masking gray strands in a pinch, or keeping telltale roots under wraps between salon visits, according to Zotos Professional. Perfect for use at the part and hairline, the one-minute mist also adds volume and delicately covers thinning patches so hair looks naturally full, according ...