bpc 157 and thymosin beta 4 oral peptides Peptide Therapy 101: Can BPC-157 & Beta-4 Accelerate Ortho BPC-157 & TB-500 Blend (10mg/20mg)
Description

With the two injectables, one every 2 days and the other every 3, I was more worried about the stress I would cause with injecting her almost every day and sometimes twice a day

That's a fancy term for freeze-dried
The short answer to this is your body may become deficient in any vitamin or nutrient that you do not provide through a supplement after bariatric surgery

While this effect is minor in a sealed vial over the short term, refrigeration helps keep the preservative where it belongs: in the solution