The shorter (serum) half-life is the reason it's taken 3x/day. Kuinone is said to require only 1x/day administration, as it's absorbed steadily into the body over many hours.@baccheion
I did not realize Mk-4 is cheaper. Mk-7 is natural, and seems to have more staying power and bone power.
I'm also going to use Magnesium Oil topically. Thanks for the Vitamin A suggestion.
I was following this protocol for hairloss: Hair loss from DHT/Steroids? Think again...very interesting topic...
My jaw is decently wide, but I've noticed my head is also elongated, which is unsightly. I actually wasn't supplementing for a wider jaw, but I am a believer.
MK-7 is said to have stronger action on bone due to it's longer serum half-life. On the other hand, MK-4's face-widening effect isn't likely due to its direct actions. That is, it may be more related to IGF-1.