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bpc 157 spray vs injectable BPC-157 Injection Oral Peptide: Injectable, Oral, and Nasal Delivery Methods Compared — Which Is Right for Your Goal? BPC-157 LIQUID SPRAY - High
Description
My feeling is that if you use any smaller gauge of needle you risk damaging the surrounding tissue at the injection site

Severe side effects are rare

The Cochrane Database of Systematic Reviews (3) CD004326

Common side effects include injection site reactions, nausea, headache, and red-coloured urine

To learn more about vitamin injections in general, read our blog post on vitamin injections

Important things to think about include: Checking if Vitamin B12 supplements are really needed
