22-07-2014, 16:28
http://www.ncbi.nlm.nih.gov/pubmed/10930709 implies that Pygeum africanum, and Serenoa repens can lower 5-alpha reductase.
http://www.ncbi.nlm.nih.gov/pubmed/12006122 possibly beta-sitosterol
http://www.ncbi.nlm.nih.gov/pubmed/12006122 possibly beta-sitosterol