Also, consider that starting with a topical would be a sensible safety measure if youre concerned about the copper uglies or some other intolerance to GHK-Cu
Mortazavi S, Vadoud S, Moghimi H
Furthermore, while GABAAR currents are increased by barbiturates (and other general anesthetics), barbiturates, as relatively non-selective compounds, bind to an entire superfamily of ligand-gated ion channels and can block ligand-gated ion channels predominantly permeable for cationic ions, the neuronal nicotinic acetylcholine receptor (nAChR), the 5-HT3 receptor, the glycine receptor, and others [231,232]
Oral supplements, such as pills or capsules, are commonly used and typically well tolerated
Sublingual (Under-the-Tongue) Drops: Bypasses digestion and is absorbed quickly into the bloodstream
Aitken RJ