Two questions

1. What is a good brand of blue-black dye? I dyed my hair regular black with Natural Instincts (demi-permanent) but I want something more interesting and shiny lol. (Google doesn't do a good job of recognizing "blue black")

2. If I use permanet dye will my hair become highly porous? Low porosity is annoying and I was hoping the demi would lift my cuticles up but it only helped a teeny tiny itsy bitsy lil bit. Lol my hair is very coarse so I don't need my porosity to be super low too.

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Thick/coarse/low porosity/low elasticity
4a/b cottony/spongy

At war with my indestructible, armadillo hair...MY WILL BE DONE!