I take it with TB-500 and GHK-Cu on its own. BPC-157 and GHK-Cu daily, and TB-500 a few times a week. And honestly, I feel less sore and noticeably "better" only when I add TB-500 to the mix.
I have a tennis elbow and shoulder issues. Been using the stack for four weeks with some very moderate improvement noticed only.
If you are interested in healing a leaky gut, you might want to consider the oral version of BPC-157 and add KPV, which is said to work very well with gut issues and inflammation.
Waiting for a kit of KPV now to add it to the current stack.
One convenience with GLOW/KLOW is 1 pin a day instead of 3/4.
One inconvenience is that you don't get to decide on a dose of any of the peps in the stack; they are premixed in a given dosage, which I don't think is the best ratio. Also, if you want to pin BPC-157 twice a day, instead of just once, you're gonna need a separate vial of it anyway.
Hope this helps!