I’ve read a lot of mixed advice on storing GHK-Cu after reconstitution. How long do you keep it once it’s in solution, and at what temp? Any difference for you between sterile water, PBS, or bac water?
With BAC water after reconstituting it should last around 30 days in the fridge. Even before reconstituting you should store in a fridge if possible. And 30 days is what they say to make sure there is no bacteria growing in your vial, not due to degradation.