Hi Shadowclaw,
I think you may have seen Jenianne's flickr page (hennamuse) where she compared lemon vs water vs lemon with 6 hours sitting time, vs water with 6 hours sitting time:
http://www.flickr.com/photos/9962201...7622452766772/
Notice how much stronger one of these samples is (the water mix used immediately). All the other 3 are weaker in dye intensity. That pretty purplish shade is a weaker dye effect. Then again, these tests are on mohair so they can only give hints as to what the same mixes will do on human hair - hope you have lots of hairballs to test with
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