Vitamin B12, also called cobalamin, is a water-soluble vitamin involved in several critical biological processes, from DNA and red blood cell production to energy, memory, and nervous system function
Over time, this dual mechanism may result in better energy levels once the body has adapted, though head-to-head fatigue comparisons between the two drugs are limited
This is a viable long-term maintenance option for people who want meaningful results with minimal side effects
Common side effects by peptide type Growth hormone peptides: Water retention (temporary) Lethargy initially (adapts within weeks) Carpal tunnel symptoms (rare, high doses) Insulin resistance (monitor with long-term use) IGF-1 LR3: Hypoglycemia (keep fast carbs on hand) Jaw/facial bone growth (with chronic use) Organ enlargement (long-term misuse) Healing peptides: Minimal side effects Occasionally: fatigue, headache (rare) Monitoring and bloodwork Baseline testing before starting: IGF-1 levels Thyroid panel (T3, T4, TSH) Fasting glucose and insulin Lipid panel Liver and kidney function Follow-up testing: Every 3-6 months during protocol Monitor IGF-1 (ensure not excessively elevated) Check glucose metabolism Liver/kidney function Contraindications Avoid peptides if: Active cancer (GH/IGF-1 can promote tumor growth) Diabetic without physician oversight Significant organ disease Use caution if: Family history of cancer Pre-diabetic Taking medications that affect blood sugar See our peptide safety and risks guide for comprehensive safety information
