glp-3 rt vs retatrutide First phase 3 data, a Triumph of Science! Retatrutide (GLP-3) – Y&P Labs

One caveat the literature is honest about: as of May 2026, no randomized controlled trial has yet tested resistance training as a counter-measure specifically to GLP-1-induced lean-mass loss

Glucagon-like peptide-1 and HPG axis GLP-1 is an intestinal hormone secreted postprandially from the intestinal L cells in the distal ileum and proximal colon in response to nutrients intake

Researchers also observed improvements in waist circumference and cardiometabolic markers

TB500 complements these effects by promoting cell migration, a crucial process for repairing tissues throughout the body, including muscles, tendons, ligaments, and skin

They help regulate growth of skin cells