About 15 minutes, not including blow drying first (that takes 5-10 minutes). I have shoulder length wavy hair that is pretty easy to straighten.
I use this flat iron
with Beyond the Zone Straight Shot serum which is FULL of 'cones.
Sort of CG sometimes, but not really
2B, medium? normal porosity and elasticity?
Cleansers - Suave Clarifying, Philosophy Happy Birthday Beautiful
Stylers - BRHG, re:coil, Ion Hairspray
I live in the NYC area.