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Re:Melatonin's Effect on Skin and Hair by JimBrimble35 on Monday March 11, 2019 @11:14AM (#19359538)
I recall listening to a sleep specialist on a radio show one morning (how's that for citing my sources).

Apparently there are two different methodologies for administering Melatonin. One is to use a higher dose(1mg - 3mg) before sleep (~an hour) as a hypnotic. The other is to take a much lower dose, closer to the 0.3mg you suggested, roughly 4 - 6 hours before the desired bed time.

The latter is used for modifying the circadian rhythm , and fixing problems with sleep wake cycles.

I think the primary takeaway from that show was that people should discuss their sleep problems and treatment with a doctor that specializes in sleep. The treatments and science can be somewhat counter intuitive.

Re:Melatonin's Effect on Skin and Hair by goda90 on Monday March 11, 2019 @11:18AM (#19359582)
There was an article on this that was posted to HN last year: https://news.ycombinator.com/item?id=17632668