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GHK-Cu is administered as a daily subcutaneous injection with a 30-day cycle followed by a 30-day break

PMID 22992073

In research settings, AOD-9604 is studied for its interaction with pathways associated with fat metabolism and cellular energy regulation, without direct activation of broader growth-hormone signaling systems

Some experts have cautioned against their use, pointing to concerns over incorrect dosing, potential contaminants, unintended biological effects and the lack of human testing

Benzyl alcohol is harmless to most adults in the tiny amounts used for injections

Subcutaneous administration provides reliable absorption and consistent effects