Perhaps making your own topical melatonin from crushing melatonin pills is not optimal for transdermal absorption.
The topical melatonin I use is sold as a sublingual liquid, so it may be absorbed easier.
Just my speculation but the only point I can make as a certainty is that since I used it, I have almost zero hairloss.
This does not mean it will regrow the hair, but I never expected such a rapid response from any of the compounds I have tested, and I believe that I have tested almost everything that is available.
My bathroom and better in fact looks like a pharmacy, as I have made a point to trial anything that has any science behind it, including HRT compounds.
But this is my experience only. Who knows if my shed has ceased for good or if it will result in any regrowth.
I am just posting my ongoing experience for the benefit of my brother’s across the globe, who have allowed me to take ownership of my condition and do what I can, so at least I do not have regrets one day.
If I try my best and fail, at least I know that I did everything I could, and then I will just shave my head and focus on other aspects of my life.