does bpc 157 go bad

https://media.istockphoto.com/id/621701122/photo/ampules-for-injections-of-vitamin-b12.jpg?s=1024x1024&w=is&k=20&c=zkdM30cUwineENtaHFXTII-mCjBeHZUNRCv_lPzANhA= Why do methylated folate and B12 cause anxiety in me? doi: 10.1074/jbc.M511079200 ghkcu Scent:Standard Original Formula

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