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Whether you're an eco-chick always on the hunt for natural ways to green your beauty routine or your just want to try something new, using henna is a natural way to transform your hair color. Henna is an all-natural hair dye made from plant material. Henna comes in powder or liquid form. Liquid henna produces more predictable results since it is premixed and ready to go. Choose a shade that is darker than your current color, as lighter tones will have no effect on your dyed hair.
Wash your hair and leave it damp. Drape a towel over your shoulder to protect your clothes and put on plastic gloves. Henna stains anything it touches, so keep covered.
Divide your hair into sections to make it easier to work through. Divide it in half then divide each section in half again so that you have four sections. Clip each section up and away.
Do a strand test. Using henna over dyed hair is tricky, since it may react with the chemicals in your hair dye. Grab a small section of hair from the back of your head and squeeze a drop of liquid henna onto the hair. Rub it in, then leave it for the designated processing time. Rinse it out and check the results. If you like the color, move along to the next step. If the color is nasty, head back to the store and grab a different shade.
Squeeze out a dollop of henna onto the tint brush. Brush the dye along your hairline and the nape of your neck.
Take a 1-inch section of hair and brush the roots with dye. Coat the hair. Work your way through your whole head, section by section, painting dye onto the roots.
Brush dye onto the lengths of your hair. Cover each section with henna, then massage the dye into your hair using your fingertips.
Put on the shower cap and let the dye remain for the designated processing time.
Rinse out the henna after the processing time. Smooth conditioner onto your hair, leave on for five minutes, then rinse.