I’m starting to grey, mid 30’s and naturally very dark, almost black hair. Not sure whether to get it coloured when hairdressers reopen or allow it to grey naturally. I last had my hair coloured 18 months ago with an all over colour to cover up/blend in earlier highlights so the bottom half of my hair is now significantly different to the top half. The grey isn’t that striking, lovely silver I see but more dull. Help!!