Which is better for bone growth k2 mk4 or mk7?

[Quasary1x]

I cant see to figure it out cuz there is people who say mk4 and sum say mk7. If you have personal experience or knowledge abt this i need to know for a future botb worthy megathread (work in progress)

 

[asdvek]

Mk4

Those who say mk7 are brokefags that cant afford mk7

 

[6PSLcel]

mk4 is more bio available, but kinda expensive
u can buy from iherb
https://www.reddit.com/r/iherbpromocodes/ go on here and u can find some promo code to use to get a few % off