Hey there fellas, I’ve tried many different supplements, most all of the above mentioned, & all not to much avail. I now use cialis on occasion. I frequent my supplement store for various products as I workout quite a bit even at the age of 55. About 3-4 months ago my man there recommended a new product called Rize2, which replaced 1 called Vigor25, & it’s all natural. Let me tell all you fella, it works WONDERS in the area of erections & flaccid hang as well!!! If you buy it in a quantity pack of 12, it works out to be about $4.50 per cap. I keep it on hand ALWAYS guys! It’s even cheaper online at VitaCart.com & this site will clue you in on it better than I can. By the way GoinBig, I use to take StaminaRX for at least 2-3 years for my workouts & Rize2 puts it all to shame in the penis department.It keeps me nice & “fluffed” for at least 24 hrs. if not longer & if I care for some action,even with myself, I’m UP for action in just minutes. Guys, if I can give you any further info on this product, please feel free to PM me.