Topical finasteride (effectiveness)

I’ve looked at a couple studies now, and it seems that of all the options out there that topical finasteride is now the safest route to hair regrowth.  The studies I read basically found comparable hair regrowth compared to oral finasteride, but lowered plasma (blood) DHT by only 5-34%—compared to oral finasteride, which lowers plasma DHT by more like 50%. In other words, the topical really targets the scalp DHT, but doesn’t absorb as much into the blood.

Topical finasteride is dose-dependent as it passes through the skin in increasingly high doses. Without DHT blood levels, it is very difficult to know what you are actually delivering, and even with that, you might not know if it is working. Go to: https://perfecthairhealth.com/topical-finasteride-dosage/ and look at the graphics on delivered topical finasteride and the DHT levels found. These studies were done by Perfect Hair Health, very informative site.