The preservative inhibits the growth of bacteria, which is what allows a sealed multi-dose vial to be entered with a sterile needle repeatedly typically over a 28-day in-use window without the remaining contents losing sterility
Look for ingredients like hyaluronic acid, vitamin C, peptides, and zinc
People are reporting dramatic effects from BPC-157 in terms of injury healing and performance enhancement
However, some people cannot take vitamin B12 injections safely, including those with Lebers disease or similar eye concerns, kidney disease, liver disease, iron or folic acid deficiency, an active infection, or those taking medications that may interact with vitamin B12
Patient selection criteria are not well-established, and determining which patients are most likely to benefit from these therapies requires clinical judgment based on limited evidence