I'm 59, have waist length hair - it's thick and that's after losing 1/3 throughout menopause- the doc said to take biotin- but since sebum production has reduced greatly can't say biotin would help but can try it - I don't do anything with my hair, it has a mind of its own - it's incredibly kinky in places, straight as an arrow in others, mostly at the top -- so flat top - have a long face, and look.like a metal head / hardcore chick/guy -- take your pick- I wear mostly co-ed boyfriend type clothes- I've been told I look hideous in makeup- and similar was said when I wear nail polish- a doctor once asked me if I own horses .. He said I look like the type .. My daughter and grand d are gorgeous, unlike myself, and yet get mistaken for men often .. Anyway, come summer I clip my hair up in a mess on the top of my head and call it day - several years before my husband died I cut my hair short, he didn't speak to me for weeks ..