which is better ghk cu or 2nd generation How Often to Inject GHK-Cu GHK-Cu Peptide | The benefits,
Description
So real-world use accelerates while the science lags behind

People who experience anxiety, agitation, headaches, or insomnia from methyl-B12 may benefit from switching to hydroxocobalamin under practitioner guidance
Intramuscular hydroxocobalamin injections are the standard treatment, as they bypass absorption issues and rapidly replenish stores, which is essential to prevent irreversible nerve damage

The evidence base for use of these drugs, either for off-label indications or as non-approved drugs, is wanting
