Consider intramuscular vitamin B 12 injections instead of oral replacement for suspected or confirmed vitamin B 12 deficiency caused by diet if: The person has another condition that may deteriorate rapidly and have a major effect on their quality of life (for example, a neurological or hematological condition such as ataxia or anemia)
Many patients notice a boost in energy and mental clarity within 24 to 72 hours of their injection
Tissue Repair and Regeneration The actions of the GHK-Cu peptide include modulating 31.2% of human genes (4,192 genes) with 50% expression changes[5]
Side effects that occur less frequently are lightheadedness, nausea, fatigue, headache, dizziness, warmth, or flushing
The synthesis constitutes a formal total synthesis, since the research groups only prepared the known intermediate cobyric acid, whose chemical conversion to vitamin B 12 was previously reported
& Lipman, D