BPC-157 has shown promise for promoting healing in musculoskeletal injuries such as fractures, tendon ruptures, ligament tears, and muscle injuries, and plays a role in promoting cell growth, cell tissue regeneration, and collagen synthesis
PubMed PMID: 23163594
These conditions can often be diagnosed based on your symptoms though if you feel your symptoms are chronic then i do encourage you to book an appointment for blood work with your GP as there is a chance that you may be suffering from an underlying condition such as pernicious anemia which could qualify you for free injections from the NHS
However, there are exceptions: PT-141 (Bremelanotide) : This peptide is used for sexual function in both men (ED) and peptides for women (Hypoactive Sexual Desire Disorder)
This can construct a particular BPC 157 pathway along with that of serotonin and dopamine, given the dense presence of dopaminergic neurons and dense projections of the serotonergic systems [175]
If you're considering injectable B12, always consult your doctor to see if its the right fit for your needs