I've been dying my hair myself with Majirel and it's fine. I'm happy with the colour. My problem is there's more grey coming through and the dye isn't sticking to some of the stubborn wiry ones at the front.
My hairdresser advised me to go for a v low vol developer. I'm using the l'oreal oxydant 0 (12.5 vol). I've read elsewhere that 20 vol is standard for grey coverage. I'm not sure why my hairdresser is adamant I should stick with the 12.5 vol. I think it might be because my hair is quite porous and easily damaged.
Does anyone know about this stuff? Any advice on whether I need to use a 20 vol?
The colour is close to my natural brown colour so I'm just trying to cover grey, not dramatically go lighter or darker.