Sermorelin or Ipamorelin: Meaning, Differences, Benefits, Side Effects, and Which One May Be Better Growth Hormone and Aging Endotext NCBI Bookshelf Growth Hormone and Aging Endotext NCBI Bookshelf Throughout April we featured three peptide options available at Defy Medical. Here's a recap and what comes next. This April, we highlighted three peptide therapies commonly explored by patients interested in Growth Hormone and Aging Endotext NCBI Bookshelf