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The body's own memo telling bone marrow to build more red blood cells, the oxygen delivery fleet.

The starting pistol for the body's reproductive hormone relay, studied for keeping the natural signaling chain firing.

A GnRH agonist that floods the reproductive signal so hard the system temporarily resets. Studied in hormonal research.

A short-fuse version of IGF-1. Acts fast, acts local, then clocks out. Studied for site-specific tissue research.

The repair memo muscle releases right after it gets damaged, a "send help here." Studied for localized tissue research.

MGF with a time-release coating. The repair memo that doesn't dissolve the second it's sent. Studied for longer signaling.

Acts like a bouncer for myostatin, the protein that tells muscle "that's enough." Studied for taking the brakes off.

The original wake-up call to the pituitary. The natural hormone every "GHRH analog" is trying to imitate.

Mimics ghrelin, the hunger hormone, to ring the growth-hormone bell. Researchers study the second job, not the snack cravings.

Same shoulder-tap as its cousin but with a longer grip. One signal that lingers for days, not minutes.

The classic duo. One knocks on the growth-hormone door, the other holds it open. Studied as a stack.

Ghrelin's louder cousin. Same growth-hormone bell, with a notorious appetite side-conversation researchers find hard to ignore.

The most aggressive of the ghrelin-mimics. Rings the growth-hormone bell hardest, which is exactly why researchers study it.

The shortest honest version of GHRH, just the working fragment, studied for nudging natural growth-hormone rhythm.

IGF-1 with a backstage pass. Dodges the proteins that usually retire it early, so it stays active far longer.