It is intended for use in clinical settings where oral administration is not feasible or where higher plasma concentrations are desired, such as in cases of severe deficiency, certain infections, or as adjunctive therapy in specific medical protocols
it is naturally occurring, nontoxic, and is active at a very low nanomolar concentration.11 Another piece of research described GHK-Cu as a safe, inexpensive, extensively studied compound.3 These conclusions primarily apply to topical GHK-Cu, but even with injectables, the lack of serious adverse events in animal subjects points to a general tolerability regardless of the route of administration
Because cyanocobalamin contains cyanide there are many people who are worried about potential issues with toxicity when consuming this form of B12
It becomes necessary to choose the right form of B12 methylcobalamin or hydroxocobalaminand appropriate administration method
Despite these protective mechanisms, elevated serum B12 levels (hypercobalaminaemia) can occur and may indicate underlying health conditions rather than simple overconsumption