Additional information Supplementary Information accompanies this paper on European Journal of Clinical Nutrition website Supplementary information Rights and permissions About this article Cite this article Sinha, R., Sinha, I., Calcagnotto, A
Studies have estimated that GHK levels may decrease by more than 50% between early adulthood and later life
Systemic anti-inflammatory effects, improved endothelial function throughout circulation, or effects on neural tissues connecting to retina (lateral geniculate nucleus, visual cortex) could indirectly benefit vision
Oral Pathology & Medicine
Risks and Side Effects While generally safe, vitamin B12 injections can have side effects or risks, such as: Mild pain, swelling, or redness at the injection site Dizziness, headache, or nausea Allergic reactions (rare) Hypokalemia (low potassium levels) in individuals with severe deficiency undergoing treatment People with allergies to cobalt or who have Lebers disease should avoid B12 injections unless specifically advised by a doctor
Always adhere to the guidelines above and the drug manufacturers instructions when preparing injections with bacteriostatic water