Sarah says "yeah I have, you'll get bits of henna sand falling out for a couple of weeks and if your already red-headed you'll only need to leave it in for like an hour" She is also of the opinion that it was very successful.
I had a dream last night I tried dying my hair with henna in a public washroom. But the front turned this soft platinum blonde and patchy on the top and red throughout the back.
I used henna a lot before dreading my hair, but have been worried about using it since, because I thought it would be really difficult to get out. Bit I did it a couple of weeks ago, and it was fine. Only left it in for about an hour, and there was still henna dust coming out the next few washes, but it was much easier than I expected. I've never used chemical dies, so I can't really compare, but I know that henna is much better for your hair and actually strengthens and conditions it. The colour is permanent, although it fades in the first few days as it oxidises. I love the smell of it, much nicer than chemical dies.
I henna regularly, I use Lush henna blocks as they're more value for money, having long dreads. I leave mine in overnight, then wash out upon waking up. Henna can be permanent but you need to build it up, ie the first dye will fade very quickly but if you you dye it a week after dyeing originally and then every two weeks for a month and a half or so, it's permanent. What colour are you henna'ing? If you don't like it, don't dye over it, it'll never come out wait until it fades out.
I think it should be fine, especially if you use lemon juice, because it dries out your hair which will probably help it knot up. As for the permanence, I don't know about lush because I only ever use pure, powder henna, but it doesn't fade away completely. I didn't henna for about a year, and although it might have faded a bit, it was still red, especially in the sun. Were you planning on using lush or pure henna?
Lush is pure henna, it's just in block form rather than a powder and works out much cheaper, £7 for a block and that does my very thick, almost arse touching dreads with two of the six blocks you get, spare, but if you have shorter dreads you can get away with using three or even two of the blocks, three applications for £7. All in all, either powder or Lush block will work fine, I'm just putting it out there that for the same price for a box of powder, Lush blocks go further with your money which is a god send if you don't want to spend £24 every time you want to henna your hair. Just remember to add boiling water and lots of lemon juice and some paprika. Henna needs acid to activate it and the paprika helps to bring out a natural red tone. You can dye dreads at any stage.
Sounds like they're already mixed and come to you in a bottle. Don't like the sound of that. Wait...Did you buy dye or powder from that site?
That may just be a pre mixed liquid, they're not very specific with what they're actually selling you. I think you've bought a pre mixed solution rather than powder as the powder looks like it's sold separately. Do a strand test first because you don't want orange hair. If it doesn't work, health shops sell henna powder for dyeing.
Pics!!! It'll go a bit darker or maybe even lighter over the next few days.. My advice is to refrain washing it while it oxidizes.