I'm looking for studies apart from the ones in the third link in my question, that prove the efficacy of saw palmetto in 1) stop hair fall, and 2) growing back hair in the places of the scalp where the hair was lost.
I'm aware of the fact that theoretically saw palmetto blocks the enzyme that converts testoterone into DHT, and hence it should be effective. See for example- https://www.healthline.com/health/saw-palmetto-hair-loss#saw-palmetto, https://articles.mercola.com/sites/articles/archive/2018/07/30/saw-palmetto-for-alopecia.aspx, and in fact, two such studies have been mentioned here- https://blog.nutrafol.com/2017/03/12/saw-palmetto-benefits-hair-growth/ (read the description in the link please). But still, more studies in this regard would be crucial to prove its effectiveness. Thank you!