Imponderability because this stuff is part of a grown plant and nothing out of a lab. So changes in quality are given. And also the results depend a lot on your personal hair colour and the structure of your hair
I started using Henna to dye my hair about 12 years ago.
My natural colour is a medium blond and the structure is rather flimsy
About 3 years ago I was kind of fed up with all the red and decided that it was time to see my natural hair colour again.
That turned out to be a mistake as I couldn't get my hair as shiny and manageable as all the previous years.
So last year I started to dye again and today is the day to renew my colour :)
Step 1: What You Will Need
- powdered Henna (Lawsonia inermis) Quantity depends on the length of your hair, I use about 100g which is plenty
- rubber gloves ( you don't have to bother about them but then you will get nice copper coloured hands and, especially, fingern nails :)
- old clothes
- a washcloth
- hot water (you could also use black tea or diluted apple juice, in this case I used black tea)
- a bowl large enough
- spoon or fork to mix the dye
- plastic bag to cover your head
- a towel which should not be too new and certainly not white ;)
- about 2h of time
Step 2: How to Start
1. put on old clothes
2. mix together Henna and hot water (tea , juice) until smooth
3. wash and dry your hair, comb it
Step 3: Now Put on Your Gloves
(You might want to put some cream on your forehead, ears and the back of your head. I don't do it anymore as I don't think it makes any difference.)
I think it works best when you try to knead it down to your skin ( my hair was never longer than down to my shoulders so I can't tell you anything about applying Henna on longer hair)
Try to reduce the mess to a minimum and don't panic stains on your skin will be washed away after a few showers.
After you finished the spreading and kneading use your washcloth to clean the skin on your forehead and in your neck.
Then cover your hair with a plastic bag and wrap your head in a towel.
Clean up the mess, it might stain the tiles if left on for a longer time.
Now get yourself a nice cup of tea/coffee and let the Henna mixture steep on your head for about 1 hour.
You can leave it on your head for much longer, even over night, but I'm not very patient and so I usually rinse it down after 1 hour.
Step 4: The Result
The colour first might come as a shock but it will be already much darker when your hair is dry and it will darken over the next 1-2 days.
The colour will bleed a bit when you wash your hair and you should seriously think about putting a towel on your pillow during the night.
Have fun with your "new" hair :)