how often do you inject ghk-cu FDA scientists flag concerns with peptides as RFK Jr. tries to ease access : NPR The Truth About Peptide Injections:

Archivum Immunologiae et Therapiae Experimentalis-English Edition- 53 (3): 213

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It is thought that the peptide may directly affect metabolism in such a way so as to reduce complications separate from its effects on obesity

Dosing (the number of daily sprays) varies depending on clinical goals and tolerance

Now, this study fails to mention the exact dosage of B12 administered to patients, and whether the B12 supplements were injections or capsules