I agree that it increases hair loss . I always wondered why. Also it has always been stronger when taken orally then topical.
In my opinion hair loss is caused by increased stress hormones like cortisol and prolactin.
When blood sugar suddenly falls you get a stress response that increases the mentioned hormones.
Now as haidut confirmed vitmakn k has a strong ability to lower blood sugar. That's why I think it comes down to low blood sugar.
Btw the mechanism through which it lowers blood sugar are osteocalcin and insulin.
I personally was not even able to tolerate vitamin k until I understood that. I always got anxiety ,aggression and also increased hair loss until I started to take it with a LOT of sugar or food ...Maybe the blood sugar lowering effects are more present when taken orally .
So basically mk4 isnt safe to use unless you megadose calcium and sugar?