Originally Posted by
LetsGo
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Let’s say you have 100 units of 5ar enzymes, and you never took finasteride or anything like that. In 30 days, you will have 50 of those original 5ar enzymes left. In 60 days, 25 will be left. In 90 days, 12 will be left. 120 days, 6 will be left. 150 days, 3 will be left. In 180 days, 1 will be left. In 210 days, 0 will be left. But along the way, your body has been making new 5ar enzymes to replace the ones that are lost, holding it steady at 100 units the entire time. Finasteride knocks this down to 30 units, but after about 24 hours (finasteride has a half life of 5 hours, meaning it’s basically gone in 1 day,) the body starts trying to get back to 100 again, and over the next 6 months it should get back up to 100 again. This is why finasteride is not a one-time injection that works permanently.
It could be that finasteride somehow causes your body to think 30 units is the proper amount, even after finasteride is gone, but if that was the case then guys with PFS would not lose their hair. Most guys with PFS continue to lose their hair despite their PFS symptoms, which suggests that PFS is not caused by insufficient DHT / 5ar enzymes. Also, plenty of guys with PFS test normal or even elevated for DHT.
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