These drugs have actually been around a lot longer than most people realize — the FDA approved Byetta back in 2005, so we're talking nearly 20 years of data. Also just preemptively shutting down the snake venom thing because no, that's not a thing with Ozempic.

Honestly, don't expect peptides to move the needle much when it comes to actually building muscle.

There's no one-size-fits-all answer here — your age, weight, body composition, and hormone levels all matter way more than just picking a peptide off a list. If you're over 40, mitochondrial support might be worth looking into, and if you're carrying extra body fat or dealing with insulin resistance, tackling that first will do more for your performance than any peptide stack. Get your bloodwork done and figure out what's actually going on with your body, because fixing those underlying issues will move the needle far more than anything else.

BAC water is generally the go-to for most peptide reconstitution because of its bacteriostatic properties that slow bacterial growth (though it won't kill bacteria, so source quality still matters). BAC NaCl is another solid option and actually preferable for certain peptides/aminos, just worth researching first since some molecules don't play well with sodium chloride. The main time I see people going with plain sterile saline is with neurotoxins, though BAC NaCl makes more sense there if you're splitting doses and coming back to the vial later.