Yeah, "DHT blockers" are actually "5 alpha reductase inhibitors(blockers)" 5 alpha reductase turns testosterone into DHT. They can decrease DHT by 70-90+ percent. This can have a few negative side effects on the male body, some bad from the stories you read online. If you have male pattern baldness, you can't stop it, but you can slow it down. Within a few decades there should be a real cure