I use nice & easy shade 9b. It has several tones and I've used it over salon colour regularly. Old shower curtains on the floor and old nightie. The solution does not drip. Start at the hairline. Be careful to not get Vaseline on your hair or that bit won't colour. I don't bother with Vaseline and just rub off any dye on my skin. I think instructions say about a half hour but I leave it 45 minutes, even one hour on occasion 
First time I did it I reckoned if it went wrong the hairdresser would soon fix it...... It was grand.
Good luck.
Good Morning Friday 26th June 2026
as I have continued with letting the grey grow through and apart from a few darker bits at the back, am very pleased with the overall silver/dark ash look. Glad to be grey!!
