I have been coloring my moms hair for about a year now(shes naturally level 4/5), and at first we used redken(colorgels) 5CB, but she liked it but wanted darker/less red so we switched to 4N. She has about 40% grey. She liked the 4n but when it fades it shows through alot of the old color, but even when I just retouch her roots, they pull so much red even just with the 4n. Now shes sick of the red and wants a neutral rich dark brown.
My question is how should I go about eliminating the red?I know that green counteracts red, but its a coppery red undertone so I'm worried about that ending up really strange looking if I used a color with just green undertones. Any help is appreciated& thank you in advance.
My question is how should I go about eliminating the red?