need help on what herbs to buy please.

can anyone help? I am going to try some herbs to speed up pe increases. i was going to buy Muira puma,horny goat weed,l-arganine and niacin but have since learned of a herb called libidoblast. it contains all of the above except horny goat weed, plus zinc and folic acid. Has anyone tried this yet and what results did you get. I would also like the continual semid you supposedly get while on this stuff, my libido isnt what it was. If anyone has tried please let me know results, or if youve tried something else, perhaps i dont need all that i was going to buy, i dont know. libidoblast is also cheaper and can be found on if you want to look up dosages etc.