Cosmo Prof Beauty on Instagram: "Stop getting hot roots when covering greys! @AndrewRyanWalder's secret tip to keeping red tones out of grey coverage is to add a GREEN like @Matrix SoColor 506NJ. Would you ever try adding green to your brunette clients? @AndrewRyanWalder's @Matrix Formula: ► @Matrix 506NJ + 20vol (1:1) ► Let sit for 45 minutes. Visit your local Cosmo Prof or shop online today for everything @Matrix. #CosmoProf #Matrix #MatrixArtist #GreyCoverage #HairColor #BrunetteHairGoals…
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