Treatment like RF microneedling or Ultherapy may further diminish the subdermal fat, worsening the situation
Researchers often compare them because one can represent upstream GHRH pathway interest and the other secretagogue pathway interest
Sermorelin vs Ipamorelin vs Tesamorelin: Key Differences (2026) Sermorelin vs ipamorelin vs tesamorelin compared for beginners: how these three growth hormone peptides differ in structure, receptor, mechanism, and published research
Exendin-4 Ex-4 has been shown to enhance pancreatic beta-cell marker expression (pancreatic and duodenal homeobox 1 ( PDX-1 ), NK2 homeobox 2 ( NKX2.2) , ISL LIM homeobox 1 (I SL-1 ) and v-Maf musculoaponeurotic fibrosarcoma oncogene homolog A ( MAFA)) [35,36,37]
In fact, studies on GLP-1 receptor agonists (like semaglutide) suggest that these drugs may help improve testosterone levels in men who are obese or have type 2 diabetes [4]
doi: 10.1038/nrn3346 36 GrenhamSClarkeGCryanJFDinanTG