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Growth Hormone Axis · GHRH analog (growth hormone secretagogue)

Sermorelin

Sermorelin reference image
Drug class
GHRH analog (growth hormone secretagogue)
Status
Compounded (503A)
Reviewed
2026-06-01 · Dr. Ana Lisa Carr, MD

What Sermorelin is studied for

  • Adult growth-hormone axis support (off-label)
  • Sleep architecture and slow-wave sleep
  • Body composition and recovery
  • Pediatric growth hormone deficiency (historical FDA indication)

Mechanism of action

Binds GHRH receptors on the anterior pituitary, stimulating endogenous growth hormone synthesis and release. Preserves the natural pulsatile GH rhythm and negative-feedback safety (unlike exogenous HGH).

Frequently asked questions

Sermorelin vs. HGH — what's the difference?

HGH (somatropin) is exogenous growth hormone; it overrides feedback and can suppress natural production. Sermorelin signals the pituitary to make its own GH in normal pulses — lower peak, more physiologic.

How is sermorelin dosed?

Subcutaneous injection nightly at bedtime to align with natural GH pulses. Typical compounded dose is 200–500 mcg/night, often cycled.

What benefits do people report?

Deeper sleep, faster recovery from training, improved body composition over months. Effects are gradual — most studies show measurable IGF-1 changes by 12 weeks.

What are the side effects?

Generally well tolerated. Injection-site reactions, transient flushing, headache. Long-term safety in adults is less studied than HGH.

Clinical guideRead the full Sermorelin clinical guide →International research catalogView Sermorelin in the kindr Peptides Shop →

Related peptides in Growth Hormone Axis

CJC-1295 + IpamorelinCombination protocol for sleep, recovery, and body composition.TesamorelinGHRH analog studied for visceral fat reduction and body composition.IpamorelinSelective GH secretagogue — clean pulse, no cortisol or prolactin rise.CJC-1295 (No DAC)Short-acting GHRH analog — clean pulsatile GH release.CJC-1295 with DACLong-acting GHRH analog with drug affinity complex for sustained GH support.HGH 191AARecombinant human growth hormone (somatropin) — 191 amino acid sequence.
Research & medical disclosure. This page is educational reference content reviewed by a licensed physician. It is not medical advice and does not establish a clinician–patient relationship. Peptides offered on the kindr Peptides Shop are sold for in vitro laboratory research purposes only and ship internationally — not to the United States. For U.S. clinical care, use the kindr Longevity intake.