best place to give yourself a b12 injection Injections at Home - Safety Guide for Self-Administration Vitamin B12 Inejctions at Skin2Soul

The same applies if your elevated B12 is accompanied by abnormal results on other labs (liver enzymes, kidney markers, CBC), or by symptoms like unexplained weight loss, persistent fatigue, abdominal pain, or easy bruising

see Vitamin B12 Health Professional Fact Sheet

Cartilage degeneration was scored using the Yoshimi scale, which ranges from 0, defined as normal cartilage, to 5, defined as complete loss of cartilage

demonstrated that AOD-9604 stimulates production of type II collagen and aggrecan in chondrocytes, key components of the cartilage matrix

12 weeks: Uses 18 mL across the cycle

Vitamin B12 supplements can be taken on an empty stomach, as long as you make sure you can handle it