Best permanent dark red hair dye?

I can't afford the salon anymore but my roots are growing out and the sun is turning the red too light for my taste!Best permanent dark red hair dye?
This is info on hair dye %26amp; bleach. If you semi or permanently dye or bleach your hair you have permanently changed your natural color until you grow it out. You have opened the hair strands cuticle and removed melanin (color). With dye you remove less, then you deposit new color. Bleach you remove more the lighter you go. Once you have dyed your hair you can only go darker or stay the same level but you can change the tone DYE WILL NOT LIFT DYE. Dye will only lift natural color 2 levels with 20 volume developer. Red fades easily the red molecules are different, it's the easiest color to fade but the hardest to get out, yes it confuses us all. Using 1/4 brown neutral with 3/4 of the red will help hold it also using a clear glaze will help maintain it. If you choose to go lighter then you have to bleach the dyed part to the level you want, not your roots at first or they will be way lighter, put on when hair level is similar to root color. Then put the desired color over your entire hair. Don't do your new growth until your dyed hair is almost where you want it or they will be too light. You can't get to ultra blonde without bleaching, there isn't enough lift in the developer you need 40 volume mixed with bleach. I recommend Kalidacolors Blue. Then tone with a violet base. Use a shampoo for Blondes. There are also Hi-lift blonde dyes that are less damaging. If you want to go darker you have to fill the bleached hair with a gold based filler then color over that. Don't use ';box color'; it's unpredictable %26amp; contains metallics that can leave permanent lines in your hair if you change color products. Go to Sally's Beauty Supply they have more professional products %26amp; they can assist you in your purchase %26amp; the prices are better. Use good products not Pantene, Herbal Essence %26amp; Garnier they are silicone products. They make you hair nice at first but as the silicone builds up it locks out moisture your hair weakens %26amp; breaks. Use pro products they last longer because you use less so the extra expense is worth it. The shampoos don't contain a detergent lathering agent so it's weird at first because you are used to lather. Great specialty products are, Nioxxin, (for growth) Joico K-Pak Reconstructor also Silk Results, Rusk has New Pro Elements Keratin. Nexxus Humectruss %26amp; Keraphixx. Big Sexy has good general products. Take Biotin %26amp; Vitamin E to help have healthy hair.Best permanent dark red hair dye?
cinnamon stick