The way I look at it is in terms of pH. The higher the pH of your hair, the more the pores open. You could try using a dilute mixture of baking soda + water to increase pH before doing a DC or applying colour (i don't know about relaxer though). That way the pores are already more/ slightly more open than they would normally be.
I know it works for me anyway. If you give it a try and let me know how it works out for you.
I know it works for me anyway. If you give it a try and let me know how it works out for you.
The only thing that doesn't match is that I don't get a lot of split ends. I will try the baking soda thing or try to find products with a higher pH.

. my hair dries really quickly, well the ends do but not the roots, so does that mean i have high porosity? i have porosity control but ive never been able to properly incorporate into my regimen since so many use it differently. should i add to my dc? or use after rinsing? im just lost
I'm really referring to