can you inject b12 yourself Patients self-injecting vitamin without telling their GP, finds study How To Self-Inject B12 -

Introducing synthetic peptides adds unpredictable variables

Hematological: Polycythemia vera Gastrointestinal: Mild transient diarrhea Dermatological: Itching

CJC-1295 / Ipamorelin Strength: 10 mg / 10 mg A higher-strength option for patients seeking an expanded protocol under provider guidance

Rare but serious problems can happen, and some medicines might not work right with B12 shots

If blood tests show clearly low levels (thresholds vary by lab, but often below roughly 200 pg/mL) or there are signs of anemia, a provider may recommend weekly injections for the first several weeks as a correction or "rescue" phase