how long do you give b12 injections for Vitamin Injection Dosage Vitamin B12 Injections - Vie
Description
More visible improvements in body composition and energy are typically seen between weeks 4 and 8

A doping/sport note (because it comes up in searches) WADAs prohibited list explicitly references growth hormone fragments, including AOD-9604 / hGH 176191

50 mg vial 4 mL 2.5 mg dose Concentration: 50 mg 4 mL = 12.5 mg/mL

The associated risk in leaving parcels unattended is borne by the customer