Joico Brilliant Glow Brightening Oil instantly revs up the radiance of even the lightest hair, nourishing and protecting each strand with a megawatt gleam. Benefits Keeps blondes bright and on-tone for up to 8 weeks* Nourishes and strengthens lightened blonde hair Softer, shinier, hydrated hair Makes blonde hair appear brighter than ever 2X more shine for extraordinary illumination* Won't stain even the palest shades of blonde Smoothing ingredients fight frizz Hair feels instantly silky and soft to the touch Can be used on damp or dry hair Makes hair 7X stronger** *vs. untreated hair **Against combing breakage on clean, damaged hair