Which black hair color should I use?

I've tried a couple of different blacks, but want that super deep jet black look. Which is better, Clairol Herbal essanses black stilettos or Loreal Feria in black leather?Which black hair color should I use?
Cooler shades look darker, so if you pick blue black, it'll seem the darkest.Which black hair color should I use?
Go to Sally Beauty Supply and buy ';Jet Black'; by loreal, and then a 20 volume developer. Mix two ounces of developer with the bottle of dye in a sqeeze bottle.
Herbel Essences is is good because of the products. Try going two toned though, you don't want one dimensional hair. Try a brown highlight maybe a little lighter than black. If you're not looking for a permanent change, go with Natural Instincts, Theres no ammonia or peroxide in the dye and it will wash out in about 28-30 washes. Good Luck!!