Dark Hair with Grey what will Blonde Semi Permanent Do?

[SevernEleven]

I've got mid/dark brown hair with about 10% grey hair.

If I put a dark blonde semi permanent colour on them (thinking Nice n Easy Dark Blonde) will it cover the grey and look like highlights?

What will it do to the dark brown, I know it won't lighten it but will it coat it and make it look dull?

Hi OP, it sounds like you and I have identical hair! Very fine but lots of it and curly/wavy with lots of texture, and Ola Plex does not help at all. I was just looking at the dark blonde Demi dye, was not sure how it would come out, so I googled it… And found your post. That is a long way of saying: you posted this three years ago. Did you find something that worked for you? If so, would you mind sharing what it is?