Under the Human Medicines Regulations 2012, it is illegal to sell or supply a medicinal product in the UK without a valid Marketing Authorisation
There is no published human safety or efficacy data, no reproductive- or developmental-toxicology research, no studies in hepatic or renal impairment, and no drug-interaction studies
[6] If this happens, vitamin B 12 deficiency may result in sense loss, loss of sensation in the feet, difficulty walking, poor balance, blurred vision, changes in reflexes, muscle weakness, decreased smell and taste, decreased level of consciousness, mood changes, memory loss, depression, irritability, clumsiness, disorientation, dementia and, in severe cases, psychosis
This is normal healing, not an adverse reaction to the peptide itself