TM30089 is the most powerful pgd2 blocker, like 1000 times more powerful than setipiprant (seriously). It stops shedding in virtually everybody who try it. But it's very difficult to sleep while on it because it inhibits all the pgd2 in the body
OC000459 is also a pgd2 blocker, much more powerful than setipiprant but weaker than TM30089, so It's easier to sleep while on it. OC is very pricey, TM is very cheap.
Don't expect regrowth from these meds, their job is only to halt further recession and hair loss