Re: tech stuffPosted by Diane on April 17, 2004 at 16:26:35: In reply to: tech stuff posted by Catherine Cartwright-Jones on April 17, 2004 at 11:01:18: P.S. Catherine:Also wondered; do commercial hair dyes work in the same way? (Chemical molecules of colour binding with the keratin). I have no experience of chemical dyes personally. I have heard that red pigments degrade quite quickly for whatever reason. This doesn't happen with the lawsone molecule?
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