The Peptide Observer

Peptide research, explained for people who are not scientists.

Guide

Growth hormone secretagogues

Built from index records dated 2026-10-09 Compiled by an automated pipeline, checked by The Peptide Observer editorial desk How this site works

Growth hormone secretagogues is a group of 8 entries in this index, of which this site describes 4 and holds 4 back pending review.

Only the described entries are counted anywhere on this page.

What this group is

This group holds 8 entries. 7 of them carry a receptor or a pathway named in its records; the other 1 carries none.

7 of them point at the same place: Ghrelin receptor. A shared target is what holds this group together.

The entries described here

When the records kept for Growth hormone secretagogues were published A year scale with one mark for each of the 47 records this site keeps for the described entries in this group, running from 1993 to 2026. oldest record kept newest record kept 1993 2026 one mark for each of the 47 records plotted
Publication years of all 47 records kept for the described entries in this group. Oldest 1993, newest 2026. An old record is not a worse record, but a group whose marks all sit to the left has not been looked at recently.

What is held back

4 entries in this group are built and then held back, because publishing them without a qualified reviewer would risk being read as medical guidance. They are: Ipamorelin, Hexarelin, Ibutamoren and Ghrelin. This page says nothing about what their records contain. Why entries are held back.

What is not known

Where this comes from

This page reprints no wording from the underlying index. These are the published records that index cites for the existence of this group, listed so the grouping can be checked rather than taken on trust.

  1. Structural basis of human ghrelin receptor signaling by ghrelin and the synthetic agonist ibutamoren. Nat Commun (2021). pmid:34737341
  2. Ipamorelin, the first selective growth hormone secretagogue. Eur J Endocrinol (1998). pmid:9849822
  3. Regulation of Pit-1 expression by ghrelin and GHRP-6 through the GH secretagogue receptor. Mol Endocrinol (2001). pmid:11518797