Which works the best ??  Any real science on this topic??

http://www.ebay.com/itm/100-Single-Packs-Of-Alpha-Male-Enhancement-Pills-/121249114440?pt=LH_DefaultDomain_0&hash=item1c3b02a948

 
I highly recommend these.  They are hard to find now, cause I guess FDA found out they were putting similar RX stuff in them.

I tried all the others, and these have the least amount of side effects FOR ME.  Everybody is different; but some of my fellow mongerers agreed they cause less flushing and headaches, etc.

In case link doesn't work or isn't allowed; they are alpha male blue in color supplement.

http://www.ebay.com/itm/100-Single-Packs-Of-Alpha-Male-Enhancement-Pills-/121249114440?pt=LH_DefaultDomain_0&hash=item1c3b02a948

Well, go see your GP and get prescriptions for each. Easy process unless you're in your 20's and it's totally recreational. GP will ask you a few routine questions and write you a prescription.

The "real science" is that they work differently for everyone. Cialis is, by far, the longest acting, but gives some people (me) an achy lower back. Viagra is almost (again, for me) frighteningly effective, but it is great fun to get a hard-on like when I was a teenager.

Haven't tried levitra, so can't comment.

Good source for C, L, V is alldaychemist.org.

That shit sold after being there forever; where is my cut seller, lol.