Storing them in plastic syringes for extended periods can increase the risk of degradation and contamination
In simple terms, a substance generally must meet one of these requirements: It has an official USP or National Formulary monograph It is already part of an FDA-approved drug product It appears on the FDAs official 503A Bulks List The important point is this: BPC-157, TB-500, and injectable GHK-Cu are not FDA-approved drugs, and they are not currently on the formal 503A Bulks List
A 1995 meta-analysis of 24 studies found no proof that HCG reduces hunger or fat loss more than diet alone [1]
The needles on syringes vary as well
Surgical procedures create controlled tissue injury requiring comprehensive healing involving multiple tissue typesskin, fascia, muscle, and potentially bone, tendon, or ligament depending on the procedure
Might also be worth going armed with evidence and guidelines, since many GP's do not know about this and are often reluctant to offer it to sufferers (I know mine was)