u/Fit-Raise-6963

The first photo was taken right after my salon visit, while the last one is from last week. It has been a month since I had my hair colored to brownish copper, and I’m starting to notice regrowth since my natural hair is very dark. The color has also begun to fade and now looks a bit brassy.

I don’t think I can afford to go to the salon every month, so I’m wondering how I can maintain and color my hair at home, ideally to an auburn or soft copper shade that’s slightly lighter than my current color. How can I fix or reduce the brassy tones?

For context, I wash my hair 2–3 times a week using a sulfate-free shampoo. What products should I use to help maintain the color?