I henna-ed my hair today for the first time since high school, and I don't think I can ever go back to box dyes. I'm beyond thrilled at the color, and my hair feels so tight and strong. This is a massive improvement to the "smelly and brittle as all hell" hair I'd have after dyeing with Clairol or Feria.
Before (click on the thumbnails to see a larger version):
These "after" photos were taken under a very bright light, and are very true to the actual color! My hair is VIBRANT, flaming red. Henna purchased at this awesome site, where I'll be getting my next batch. This stuff is SO much better than the henna I used in high school! I was worried about it going green after all the chemical buildup in my hair, but the color came out well on my strand (or rather, dread) test so I went for it.
This is the red I've wanted for years. It's warm without being too orange, and it's very shiny and strong. I am psyched. I feel really pretty now.