If you experience nausea, it is almost certainly from Retatrutide alone
Always confirm against your own vial, diluent, and clinician or pharmacy instructions
Peptide-handling references consistently support cold, dry, dark storage for lyophilized peptides, freezer storage for long-term preservation, refrigerated handling after reconstitution, and avoiding unnecessary moisture exposure, light exposure, and repeated freeze-thaw cycles
Poor technique, like vigorous shaking, using the wrong solvent, or ignoring sterility, can cause foaming (which risks oxidation), precipitation (insoluble aggregates), or rapid degradation from bacterial byproducts
This peptide is not FDA approved, and there is no human safety data