@Ollie we all need to shoot for 20 estrogen, give or take. Other wise calcium will go into our scalp/ blood vessels which could be why we are balding.
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That dude looks like a broscientist. I've seen a similar vid from another author claiming hairloss isn't caused by dht but rather an imbalance of hormones (low test + high estrogen + high cortisol). I've tried some of the tips the vid recommended but didn't notice any difference. I don't know if any of the broscientists on youtube answered this major question: If hairloss isn't caused by dht, why does finasteride and dutasteride work for alot of people? (Unfortunately it didn't work for me, but does work for alot of other people) Also, if high estrogen causes hairloss like the broscientists claim then why does topical estrogen promote hair growth?