It won't make you look peroxide blonde and won't lighten dark hair, but it certainly brings out the shine in lighter coloured hair. I like to do this during the winter when I am lacking sunshine. My hair which is mousy-brown with natural highlights goes quite dark during this time.
It can also go dry and dull due to the coldness outdoors and the central heating indoors. Using a hair mask with lots of yummy nutritious food (mashed avocado, raw egg and honey) can certainly bring it back to life. Then every week giving it a final rinse with cooled camomile tea after shampooing makes it glow!
I even buy honey and camomile tea bags and use those on my (and my son's) hair. It seems to sort out my dry ends - a bit like my home made hair mask.
If you want a deep colour from the tea then let it steep for around 30 minutes. Sometimes I'll add 2 tea bags and fill a jug. Just make sure the water is the right temperature before pouring over your head. You don't want a nasty scald.Then remember to take it to the shower with you. Wash and condition as normal and rinse thoroughly. Then give your hair a final rinse with the tea. If it is quite cool it will smooth the hair cuticle, giving it a more conditioned appearance.
For dark hair, try out black tea in the same way. For a reddish tone, Rooibos (Redbush) tea will do the job.
