It's not unusual for the symptoms of B12 deficiency to get worse when treatment starts - part of the repair effect - and irritability / mood issues are know symptoms of B12 deficiency, so this may explain your reaction to the B12 shots
2019:hep.30583 69, 24272441
Supports better absorption through oral tissues
Zinc plays a crucial role in regulating hormones like DHT, which is often a major cause of hair thinning, particularly in those with androgenic alopecia
However, avoid administering it with strong acid or vitamin C formulations in the same session, as peptides can degrade at low pH
GHK-Cu has one of the most extensively studied gene expression profiles of any peptide compound microarray studies by Pickart and colleagues identified that GHK-Cu modulates over 4,000 human genes, including upregulation of tissue repair genes and downregulation of inflammatory and cancer-associated pathways