Nearly all the samples contained significant contaminants, including heavy metals, even when the amount of peptide matched what was listed on the label
doi:10.1164/rccm.200808-1313oc
However, if you have a sensitive stomach, taking them with a light meal is also perfectly fine and will not significantly hinder the benefits of liposomal formulas
X., Bellon, G., Chaqour, B., Wegrowski, J., Patt, L
Daily injection compliance matters: GHK-Cu requires daily subcutaneous injection, which is not the right fit for patients who only want to inject their GLP-1 once a week
Garlic and onions are loaded with sulfur compounds, and sulfur is literally what the body uses to build glutathione