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Progesterone causes hard erection

by Mike
(Virginia )

I have been taking half pill of progene and it helps with erection. But when I tried a little progesterone cream on the scrotum one day, it gets as hard as a rock. It is much better than Viagra.

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Oct 22, 2013
 Progesterone causes hard erection
by: Alyce

Hi Mike

Lucky you!! Just shows you that we do not need drugs!!! What progesterone cream did you use by the way? Have you tried Natpro, you may get even better results!!! *wink*

Take care.
Oct 22, 2013
 Progesterone causes hard erection
by: Wray

Hi Mike I'm delighted to hear this, as it corroborates what other men have found, see here and here. Progesterone cream is also an excellent lubricant, benefiting the woman as much as the man. So applying it to the penis is another option. It's a powerful antioxidant and anti-inflammatory, so if the woman has vaginal dryness/inflammation it has an added benefit. And in an older man it prevents inflammation or prostatitis. Plus lowering his rising oestrogen levels which always occur. I've not heard of Progene before, it has excellent ingredients, apart from the vitamin A. This inhibits the uptake of vitamin D, I see the Progene had none at all. DHEA converts to testosterone, so would increase levels if low. Arginine does not support testosterone production, it's the precursor to nitric oxide. This tiny molecule is a potent vasodilator, vital for a normal erection. If NO is low, an erection would be impossible. Progesterone is also a potent vasodilator, plus it increases the production of NO. Hence the success you had with it. Both relax smooth muscle. Unless the smooth muscle within the corpus cavernosum is relaxed no blood can flow in, see here. Viagra works by relaxing smooth muscle, but it does have adverse side effects, unlike the nutrients. This is an interesting paper here. It mentions several transmitters involved in erectile control, one of which is NO, the other is dopamine. If you look through our page on Libido, you'll see dopamine plays a central role, far more so than testosterone. Progesterone is one of the main players too. The amino acid tyrosine is the precursor to dopamine. Vitamin D is vital too, please have a test done, yours could be too low. High vitamin D not only increases the benefits of progesterone, see here, here and here. But also increases testosterone levels, see here and here. Continued below
Oct 22, 2013
 Progesterone causes hard erection Part 2
by: Wray

Hi Mike Although there are thousands of papers on NO, it appears no one has thought we could all possibly be low in it. Although arginine is the precursor, only about 3% is converted to citruline, another amino acid. It's in the conversion of arginine to citruline that NO is released, see this simplified formula...
L-arginine + 3/2 NADPH + H+ + 2 O2 ⇌ citrulline + nitric oxide + 3/2 NADP+
As you can see the conversion is two way, i.e. arginine can be converted from citruline, see here and here. So you could try taking citruline instead of arginine, you might find it more effective. But what is probably our most important source of NO is the sun, and most of us spend 90% of our time indoors now. The action of the sun on our skin forms vitamin D, which we all know. But that same action also produces NO, see here. So it could be that our lack of NO stems from a lack of sun. But unlike taking a vitamin D supplement, which is so simple, taking arginine or citruline the conversion can be very inefficient. Take care Wray
Jul 28, 2022
 always learning
by: don

No matter how you are there is always something you don't know. This is the case with progesterone and erections. Thanks for the information.

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