elixser health bpc 157 BPC-157: Experimental Peptide Creates Risk for Athletes What Science ACTUALLY Says About
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16 Prime Lab PeptidesTB-500 (5 mg) product page purity specifications and certificates of analysis

Since this method bypasses the digestive system, there is maximum absorption and immediate benefits

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Amniotic Fluid Allografts: Biologic products rich in cytokines and growth factors that aid in joint and tendon repair

10.1093/hmg/ddt619 274

A more likely reason for deficiency would be low absorption in the gut, probably because of pernicious anemia or another condition
