Tirzepatide is a synthetic 39–amino acid peptide that acts as a dual GIP and GLP-1 receptor agonist[1]. In other words, it mimics two natural incretin hormones (GIP and GLP-1) to enhance insulin secretion and reduce appetite. It’s administered as a weekly subcutaneous injection (brand names Mounjaro® for diabetes and Zepbound™ for obesity) and has shown […]

Retatrutide (sometimes shortened in forums as “retatrutide peptide” or even “LY3437943”) is an investigational peptide that blends three hormone pathways—glucagon‑like peptide‑1 (GLP‑1), glucose‑dependent insulinotropic polypeptide (GIP) and glucagon—into one long‑acting molecule. Early trials show extraordinary weight‑loss and metabolic effects, but the drug is still in clinical development, so curious readers often ask: what is retatrutide, […]