AND THE PLOT THICKENS!
Good post. And since most of it is speculative -- albiet, intelligent speculations, I'd like to throw some thoughts into the mix.
First of all, libido is extremely complex process. There are dozens of variables involved. Although free test is a part of it, that doesn't mean that somethng that increass libido increses freeT and vice versa. It's impossible to guage.
As "Lawn" mentioned, nitric oxide just provides blood flow to the genitals (as does yohimbine). Many things contain Nitric oxide, including arginine and NAC. But they wont do jack for libido or free T.
Dopmine is indeed a factor. An herb that is also known as a sexulal stimulent is "Mucana Puriens', and it too is thought to increase dopamine levels.
I'm not familiar with carao but from what I understand it's a "blood builder" which I find very interesting for several reasons.
Lack of RBC is a common cause of impotence but since anemia is virtually non-existant today and iron supplements can be toxic, the use of supplemental iron has fallen out of favor, even though old time bodybuildrs used them regularly. Iron increases strength (think "Popeye" _- Spinich was a cheap form of iron during the war when meat was unavailable) Iron also increases blood volume and appitite. Now, is there anything else you know of that does the same things? You guessed it -- good ol' anabolic steroids...which incidentally also increase red blood count.
Now this creates a paradox. Anyone using gear has to be careful of their RBC. If it gets too high, the platlets thicken and it can cause a stroke. So I have some concern with the carao along with a cycle. I'm assuming the carao must contain iron is some form. If it's hemme iron, it's less toxic than ferrus sulfate, which is in most "vitamin/mineral formulas. (Decicatted liver also contains heem iron) It may also contain B-12 which is necessary for the formation of red blood cells.
So anyone who got a "boner boost" from carao might just be a little deficient in RBC. It's not that unusual. Does anyone know the actual ingredints in Carao?
Having said that, I'm going to give Carao a try. And since I go for blood tests every few months, I'm going to keep an eye out for the platlet count. Of course, if your teeth start tuning brown, that means you've overdosed on iron!
But for now, I'm going to guess that Carao doesn't release free T. But that's just a guess. Then again, if it helps, it helps.
At any rate, isn't it great that we live in a time where we have things like viagra and aphrodesiac herbs and HRT? It makes growing older suck just a little less. Of course in ten years, all this stuff is going to be looked on as so primitive. This generation of bodybuilders are the true pioneers of life/youth extension.