Which toner to use? I've tried the Wella t18 and it works alright, but it doesn't last long and doesn't take away as much of the yellow as I'd like. This photo
Wella T14 vs T18: Toner Differences, Results, & Expectations
WELLA TONER T14 & T18 | TONING MY HAIR - YouTube
Amazon.com: WELLA colorcharm Hair Toner, Neutralize Brass With Liquifuse Technology, T18 Lightest Ash Blonde, 1.4 oz : Beauty & Personal Care