09-14-2010, 12:28 PM
Join Date: May 2009
If you used 100% pure body-art quality henna, you can safely color over it.
I found that my hair didn't hold color very long after dying over henna; it seemed that the henna seals and coats the hair shaft and makes it very non-porous so it is hard for the hair dye molecules to penetrate. I also found that the underlying orangey-red tint of the henna gave me some rather brassy results; I ended up having to use a darker, cooler shade to counteract the orange-ness. I was using demi-permanent color; you might have better results with a permanent color as it would use a higher volume developer so might take a little better.
If you used henna + indigo, proceed with extreme caution as indigo often turns green in reaction with chemical hairdyes.
In any case, I would definitely advise a strand test before you do your whole head.
2a/b right now; 2c when it's longer
Fine/iii density/high porosity
Suave Naturals Coconut co-wash
GVP Protein Restructuring Conditioner
GVP Conditioning Balm
Eco-Styler, LALSG, BRHG, Garnier Curl Shaping Spray Gel
ACV rinse 1x per week