I didn't really feel that saw palmetto really doing anything to my body until I used the 85-95% version. I could take 550 mgs of plain SP and not feel it but if I take 160 mgs of the high % version, it is generally really noticeable. I been taking saw palmetto for many months already and I do notice shedding from it (I think?) but am unsure about regrowth. The SP combo i bought recently has even more potent effects on my body since it also has a pygeum extract in it with pumpkin seed oil. I think if you are going down the SP route, you should maybe consider also taking beta sitosterol. Many people on this forum say you are wasting your time with these kinds of supplements but I still have faith in them. However, I have just recently started taking a low-to-moderate dose of finasteride and 1/2 ml 5% minoxidil every day along with my supplements. It would be difficult for me to say which specific treatment had the most effect on regrowth or maintenence. The recent move to use the more tried and true methods was because I just noticed a bald spot on the back of my head. I will continue to take my SP combo regardless because it makes my prostate feel pretty good anyway. I reccomend at least starting on minoxidil with the SP if you haven't already.