what are ghk cu peptides GHK-Cu: The Regenerative Peptide for Skin, Hair, and Beyond GHK-Cu – True Lab Peptides
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To maintain optimal stability, keep the pen away from light, and do not expose it to repeated temperature changes

Sci Rep 7 , 5100 (2017)

Ghazanfar, H

10.3389/fphys.2020.623769 22

The dosing schedule begins with a small introductory dosage of 0.25 mg and is increased slowly until a therapeutic dosage (a dose which provides good hunger suppression, minimal side effects, and consistent weight loss) is reached or the highest FDA-approved dose, 2.4 mg, is reached

Since the bond formed between heme and carbon monoxide is less dissociable than the hemeoxygen bond, severe disruption of normal oxygen transport can occur