I have really porous hair, apparently (just learned this!), and I'm having trouble with a lot of wilting throughout the day. I cannot get second-day hair for the LIFE of me anymore (used to have it all the dang time!). So this caught my eye... But do you add the mineral oil to wet hair before or after other styling products? And what kind of mineral oil is best? Are there different brands? I'm such a n00b, sorry!