genetic + stop finasteride + androgenic hormone = disaster on your hairline
I agree. Obviously the DHN is a milder androgen than DHT, so in theory deca shouldn't be harsh on your hairline. But if you are very prone and you were to stop taking finastride, you may still experience some hairloss due to your own natural test/DHT.
However, Deca would surpress your natural test level. So you would have less DHT conversion.
So in other words, Deca would probably have the same effect as your natural test/DHT level without finastride. So yes, it can still cause hairloss for that reason if you are very prone. But it shouldn't speed it up anymore than it would with you natural test/dht.
But again, you could use topicals to help minimize this. If you stick with a short 6 week cycle of NPP or something and just take the spiro/minoxidil..etc. I don't imagine you'd have much of an issue.
DHN doesn't bind to the hair AR's as aggressively as DHT.
Another thing to remember that by blocking too much DHT in you system is actually bad....bad for your hair too!!!
You need a certain amount of DHT to stimulate hair growth. That's why when people take testosterone, they experience more hair growth in the rest of the body (face, chest..etc.) but not on the scalp.
The reason is, the scalp AR's can't cope with the overload. They are more sensitive to it. But they need a certain amount of DHT to stimulate growth.
If you block too much DHT in the body, you would have more "unreduced" testosterone. This means more Testosterone will aromatize into estrogen.
Too much estrogen can also lead to hairloss.
So they key is to maintain a certain balance.
Too little DHT is bad, too much is bad (also for the prostate).
Too little estrogen is bad, too much is bad.