does b12 injection have to be in muscle

https://5.imimg.com/data5/SELLER/Default/2026/1/574148014/XZ/VG/IW/257932806/bpc157-10mg-injection.png Bacteriostatic Water for Peptides | Pure Health Peptides pernicious Using a sterile syringe and needle, your provider will draw up the prescribed dose of vitamin B12 and inject it at a 90-degree angle into the muscle Size:30mL

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