I love this hair dye! It's the perfect deep red and I get so many compliments on my hair. My hair is bleached and it lasts around a month on the bleached parts when I wash my hair every other day. It does dye my medium brown natural hair as well, but that only lasts a few weeks, so for the full effect you probably want to bleach your hair (if it's darker). I first bought some March 2021, and it's been my go to ever since. I'm excited that they have the 8 oz bottles now, since it's more cost effective than the 4 oz bottles. I also love the smell and my hair always feels and looks so good right after I dye it. It does stain the tub though, so be careful when you wash it out and be prepared to bleach things afterwards, but it's hair dye, so that's going to happen regardless. 10/10 would reccomend!