what are the ingredients to crinagen? If it is saw palmetto, then it won't work.
spironolactone inhibits the androgen receptor, but not enough to match the effects of propecia, perhaps. Topical RU is stronger than propecia as far as hairloss, but very expensive.
If you buy bulk borageseed oil, and separate the glycerol from the fatty acids, you'd get some very cheap revivogen, minus the other ingredients. I'm still trying to learn how to do that.
EGCG in concentrated GTE is a potent androgen receptor blocker, and curcumin is a good 5ar blocker, but I don't know how they compare to spironolactone or propecia, or how well they are absorbed. Yellow curcumin is not as good as clear curcumin, and I don't know what kind is in GTE.