I tried Pycnogenol twice and never more than 100mg. It did boost my libido and possibly also erectile function a bit. What I notice while on it was that my nipps were considerably widened during much of the day.
On iherb one female user claimed that it raised her prolactin which she confirmed by labs. My reaction very much fit that.
When I tried arginine and citruline it was impossible for me to gain any kind of erection. No idea what went on. But this seems to be not common at all and I hope you have more success with the 3.
I have tried arginine , citrulline and pycnogenol for a week also. Its impossible to have any erection. do you know whats the cause of this?
Ive been experimenting with citrulline and aginine for a while. I know that they work at some level but the dosing has been a challenge. Initially, I began using them to improve the effectiveness of PDE5s at a smaller dose. I was taking 3,000 mg of citrulline and 1,500 mg of arginine in 3 equal doses per day. It seemed to be working fine but I wanted harder erections.
So, I added citrulline malate powder as it is supposedly more effective. I began taking 2,500-3,000 mg in the am and 3,000 mg usually around dinner time. Worked VERY well - at first. Then I began to have more frequent erection failures. The PDE5s were working well, but their effectiveness would wane very quickly. For instance, I took 50mg sildenafil which began working in under 10 minutes. 60 minutes later I couldnt perform. As expected, I was really pissed off and confused.
I reached out to my new doc and he basically explained that I was over doing it:
"Yes it is a complicated answer but simply the receptors in the body get saturated because you are causing a bolus effect not a natural slow release effect."
In other words, I think I was overloading my body with the citrulline malate when it was unnecessary.
Even "normal" doses throughout the day appear to be effective for most people.
Hope it helps.