Most people don't ruin peptides in the syringe. They ruin them in storage. Peptides are delicate signaling molecules. Heat, light and unstable temperatures slowly degrade their structure long before the first injection Peptide Storage 101: Keep Your Peptides Potent + Protected If you've ever opened your package and thought, Wait why isn't this ice cold? you're not alone. Good news: lyophilized peptides are far tougher Doctor Explains How To CORRECTLY Prepare And Inject Your Peptides (not what you think) Liposomal BPC 157