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Concern · Growth Hormone & Lean Mass
GH-axis, recovery & body-composition peptides.
Research peptides that stimulate endogenous growth-hormone release through two complementary mechanisms — GHRH analogues (CJC-1295 No DAC, Tesamorelin) and GHRPs (Ipamorelin). Commonly paired in research protocols for synergistic GH pulse amplification.
CJC-1295 (No DAC) listings
GHRH analogue — pulsatile GH release.
Ipamorelin listings
Selective GHRP — minimal cortisol / prolactin.
Tesamorelin listings
FDA-approved stabilised GHRH analogue.
Why this concern
CJC-1295 No DAC is a stabilised GHRH analogue with four amino-acid substitutions that extend plasma half-life while preserving pulsatile GH release. Teichman, Ionescu and Alba (JCEM 2006) characterised its 30-minute half-life and GH-axis effects. Read the full CJC-1295 guide →
Ipamorelin is a selective GHRP (ghrelin-mimetic) that activates GHSR-1a with minimal cortisol or prolactin elevation — a cleaner profile than GHRP-6 or GHRP-2. Its mechanism is complementary to GHRH analogues, which is why the CJC-1295 + Ipamorelin stack is widely referenced in GH-axis research. Read the full Ipamorelin guide →
Tesamorelin is an FDA-approved GHRH analogue, primarily indicated for visceral-fat research but also referenced for broader GH-axis stimulation. Read the full Tesamorelin guide →
Research Blog
Learn before you buy
Mechanism, literature dosing ranges and stack protocols.
Peptide Guide
CJC-1295 (No DAC): GHRH Analogue Research Overview
Stabilised GHRH, pulsatile GH physiology and the CJC + Ipamorelin stack protocol explained.
Read guide →Peptide Guide
Ipamorelin: The Selective GHRP Research Guide
GHSR-1a activation without cortisol or prolactin spike — Raun 1998 characterisation and synergy data.
Read guide →Peptide Guide
Tesamorelin: FDA-Approved GHRH Analogue
Egrifta approval, Phase III data and the broader GH-axis literature.
Read guide →For in vitro research and laboratory use only. Not for human or veterinary consumption. Not intended to diagnose, treat, cure, or prevent any disease.