n-acetylcysteine or glutathione N-Acetyl Cysteine (Glutathione Precursor) nac glutathione pubmed N-Acetylcysteine (NAC):

At clinics such as Vera Clinic London, B12 injections are offered as a quick wellness treatment designed to support energy levels, metabolism, and overall wellbeing

For general antioxidant and immune support, 250500 mg per day is commonly sufficient

doi: 10.1007/s00296-010-1606-z 76 LittleCBBaraiABurkhardtDSmithSMFosangAJWerbZet al

Enter BPC-157 Arginate Salt: The Next Step

What the Research Shows Primary mechanisms include VEGFR2 activation and Akt-eNOS signaling (DOI: 10.1007/s00109-016-1488-y), nitric oxide modulation (PMC7555539), fibroblast migration enhancement (DOI: 10.1152/japplphysiol.00945.2010), and growth hormone receptor upregulation (PMC6271067)

As a result, getting more nutrients to the wounded quickens the healing process