Subcutaneous injection: Definition and what to expect Intra Articular Injection Of Peptides For Joint Pain BPC 157 And TB 500 for Arthritis 18.5 Administering Subcutaneous Medications Nursing Skills 2e Meet BPC 157the healing peptide that's rewriting recovery timelines I've been recommending & writing for 8 years now. I told you about it 4 years ago on social. And now I'm telling Step by step with Dr. Rodenberg: How to give yourself a subcutaneous injection! Have you used peptides? What are your thoughts? Let me know below Peptides are short chains of amino acids that play vital roles in cellular signaling and repair throughout the body.