It is interesting that the P-3074 formulation is a chitosan that limits systemic absorption of finasteride. In the 100
So, some interesting thigs about P-3074. First, one of the things people seem to be ignoring in the topical finasteride studies are the serum DHT inhibition. If the topical version inhibits Serum DHT that same as oral, then you are still essentially causing some of the same system "damage" as the oral. That said, the system Finasteride in the body is dramatically less when used topically.
The interesting thing about the P-3074 formulation is the vehicle used to carry it (Chitosan). It essentially limits system absorption (not completely). What's more interesting is if you read the study, the LOWEST dose seemed to be the most effective and also systemically only inhibited DHT 25% vs about 70-75% with oral. The scalp DHT inhibition was the same if not better than oral Finasteride last I remember (in the 100μL dose). Also, systemic levels of Finasteride were reduced by a factor of 18-20.
Some of the other formulations of topical Finasteride show a similar DHT inhibitory effect to the oral. This is a no-go ... sure you lower your system finasteride absorption, but you are still affecting DHT systemically.
So, there are more things that people on here may want to pay attention to. Insulin resistance is also a major factor in male pattern baldness. I can't post the studies yet, because I'm a new member, but they show that higher levels of insulin (due to insulin resistance) correlate to higher levels of male pattern baldness. Eating refined sugars, wheat, etc is going to increase your hair loss according to research.
An endocrinologist friend of mine does not want me to be on Propecia (I had an FUE transplant at a very reputable Doctor in NY 4 years ago and the results were amazing). His advice was basically Vit D3 at least 5000/day, 3k Omega 3s, 100 alpha lipoic acid, and on androgel to increase the T a little bit. Low T can also lead to insulin resistance.
That's it for now!
p.s. diet matters