I will be adding to this post - See also updates in this post
Create NEW hair follicles for previously NOT luxurious hair? NOT YET! The research is linked.
"Patient information: Hair loss in men and women (androgenetic alopecia) (Beyond the Basics)"
Science+current treatments minus all fraud!
"Using stem cells to grow new hair"https://www.eurekalert.org/pub_releases/2015-01/smri-usc012715.php
The research is linked in the article. Still early days, also only on mice so far but promising.
"Hair loss", color and bolding added by me, @
"Some studies report ... alopecia areata may be helped by lavender oil ... thyme, rosemary ... cedar wood. Further study is needed." = UNPROVEN