Glucagon like peptide 1 receptor: mechanisms and advances in therapy Signal Transduction and Targeted Therapy Glucagon like peptide 1 receptor: mechanisms and advances in therapy Signal Transduction and Targeted Therapy GHK Cu Peptide Progress: Week 3 Results GHK Cu longevity peptide. Your body makes it. Peaks at 20. Down 60% by 60. 50 years of research says it: Modulates 4,000+ genes toward younger expression Regenerates bone and connective tissue