I'm no expert, but I just thought this up and think it is common sense (been doing that a lot lately). You decide:
Your prostate is the biggest producer of DHT, and uses it to sperm, I think.
Normally, your sperm leaves into your bladder at the same rate it is produced, so there always is a fresh supply ready (evolutionary advantage).
After you ejaculate, though, sperm is produced in a hurry to refil the supply. That means even more DHT is needed. People experience a significant drop in testosterone for 20 minutes to an hour after ejaculating. This drop is the result of serum testosterone being turned into DHT for sperm production perposes. The testes quickly return the testosterone levels to normal after that.
So don't masterbate every 30 minutes 10 times after a workout, or you won't start building muscle as soon.
The DHT is produced by upregulating 5ar2 with relaxin. The relaxin is released by some mechanism with the ejaculation.
Probably the prostate and testes get the highest dose, if that is where the relaxin is release. Not sure on that one. But since your brain even feels the relaxin (getting sleep after ejaculation), it is probably a systemic effect. So your hair follicles are affected too, but only temporarily.
If your sperm count is reduced, that would mean the spike is not lasting too long. But if they stay the same, it could mean prostate 5ar2 was upregulated, or it could mean that you just take longer to make the sperm, and your hair follicles would be affected longer too.
Just look at the fact that 0.05mg/day and 0.2mg/day finasteride are close in hair saving strength, and look at how dutasteride and finasteride are pretty close, and you can guess that 20 minutes to 1 hour per day of having 50% more DHT in your follicles probably will not hurt hair count much.
Finally, the newly produced 5ar2 will be around for a while, so I suggest taking your finasteride a hour after you masterbate, so you can block the extra 5ar2 soon after it is made. If you take it right before, your body will just keep upregulating the 5ar2 until it gets enough to make that sperm, and the finasteride will only be in your blood for a few hours before the liver metabolises it.
Your prostate is the biggest producer of DHT, and uses it to sperm, I think.
Normally, your sperm leaves into your bladder at the same rate it is produced, so there always is a fresh supply ready (evolutionary advantage).
After you ejaculate, though, sperm is produced in a hurry to refil the supply. That means even more DHT is needed. People experience a significant drop in testosterone for 20 minutes to an hour after ejaculating. This drop is the result of serum testosterone being turned into DHT for sperm production perposes. The testes quickly return the testosterone levels to normal after that.
So don't masterbate every 30 minutes 10 times after a workout, or you won't start building muscle as soon.
The DHT is produced by upregulating 5ar2 with relaxin. The relaxin is released by some mechanism with the ejaculation.
Probably the prostate and testes get the highest dose, if that is where the relaxin is release. Not sure on that one. But since your brain even feels the relaxin (getting sleep after ejaculation), it is probably a systemic effect. So your hair follicles are affected too, but only temporarily.
If your sperm count is reduced, that would mean the spike is not lasting too long. But if they stay the same, it could mean prostate 5ar2 was upregulated, or it could mean that you just take longer to make the sperm, and your hair follicles would be affected longer too.
Just look at the fact that 0.05mg/day and 0.2mg/day finasteride are close in hair saving strength, and look at how dutasteride and finasteride are pretty close, and you can guess that 20 minutes to 1 hour per day of having 50% more DHT in your follicles probably will not hurt hair count much.
Finally, the newly produced 5ar2 will be around for a while, so I suggest taking your finasteride a hour after you masterbate, so you can block the extra 5ar2 soon after it is made. If you take it right before, your body will just keep upregulating the 5ar2 until it gets enough to make that sperm, and the finasteride will only be in your blood for a few hours before the liver metabolises it.