Stephanie Porter on Instagram: "Peptides are short chains of amino acids that can act as messengers in the body by binding to specific receptors and influencing cellular signaling pathways. Important nuance: “peptides” is a broad category. Some peptide-based medications are FDA-approved (like insulin and GLP-1 receptor agonists), while others are not FDA-approved, may be compounded, or are sold as “research use only.” How someone responds depends on the specific compound, dosing, timing, individ