The cellular biology by which dietary sulphur amino acids enter the body's pools, the chemistry by which they are converted into cysteine where needed, the integration of dietary chemistry with the body's own synthesis machinery all of these are well-characterised topics in the published research
Public health guidelines ensure all shots are sterile and preservative-free
As more research is conducted, the potential for FDA approval of these therapies may increase, but in the meantime, peptides like BPC 157 offer an exciting option for those looking to accelerate healing and improve their quality of life
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Old standbys still help, too, like physical therapy, over-the-counter (OTC) anti-inflammatory medications, ice compresses, or topical OTC therapies like Biofreeze