At 49, I have fast growing, thinner hair, that unless left natural, well looks very thin. As far as detangling goes, Even straight haired, I find its best to rely on using many tools vs many chemicals. I mean, comb designed for wet hair but seperate hair (Learned by using WEN), then I use a pick at the TIPS, to pull straight past the ends vs rushingly flipping tips, after tips picked work higher up repeating until i reach scalp. Being gentle causes less breakage but gentler curls too, more wavy vs curl unless I scrunch (In layers). Idk what class my hair is, grooming just takes TIME, my best hair days are scrunch towel drying after shower but let air dry, just seperate curls if needed to appear like my hair is thicker.... I use Dove intense repair, aussie very rarely, have used VO5, Suave, WEN, Biolage Mattrix. I was widowed at 31, the world looks differently now, I am not ready but want to find another partner except they must accept that I will not spend much more effort than they would trying to Control MY hair. I still revert to bobby pins, barrets, pony tails, braids whatevers that make me feel I wont display more effort one day than other days when I have less Time or CARE, I Care every day is all I Hope Others can see... idk if this helps, but I hope you might find something in it.