Peps
CJC-1295
CJC-1295 is a growth-hormone-releasing-hormone analogue. The foundational human trials studied a long-acting preparation and measured endocrine responses.
Research topics
Read the studies →Growth & muscle research
Growth-hormone pathways and muscle signaling.
This topic groups related research questions. Shared biology does not make different peptides interchangeable, or establish a clinical benefit. Compare each paper’s population, preparation, and measured outcome.
Follistatin 344
Follistatin 344 refers to a follistatin precursor isoform. A frequently cited human study delivered an FS344 gene construct using a viral vector; it did not test injections of a supplier’s follistatin protein.
Research topics
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Ghrelin
Ghrelin is a peptide hormone involved in appetite signaling. A small human crossover experiment found higher food intake after an acute infusion.
Research topics
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GHRP-2
GHRP-2 is a synthetic ghrelin-pathway agonist studied for growth-hormone release and eating behavior. Those effects have different practical implications.
Research topics
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GHRP-6
GHRP-6 is a growth-hormone secretagogue with effects extending beyond a single hormone. Human physiology studies help explain that distinction.
Research topics
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Hexarelin
Hexarelin is a synthetic six-residue growth-hormone secretagogue. The selected early human experiment measured hormone release, rather than muscle gain or injury recovery.
Research topics
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IGF-1 DES
Des(1-3) IGF-1 is an IGF-1 analogue missing its first three amino acids. The featured study examined developing rat neural tissue in culture, rather than athletic performance.
Research topics
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IGF-1 LR3
IGF-1 LR3 is a modified IGF-1 analogue. A rat experiment assessed intestinal tissue growth and glucose-analogue absorption, rather than bodybuilding outcomes.
Research topics
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Ipamorelin
Ipamorelin was developed as a growth-hormone secretagogue. Its often-cited selectivity comes from early pharmacology experiments, not a comprehensive human safety program.
Research topics
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MGF
MGF can refer to an IGF-1 splice-product context or a synthetic terminal E-peptide. A primary replication study found no apparent effect of the tested MGF peptides on muscle-cell proliferation or differentiation.
Research topics
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MK-677
MK-677, or ibutamoren, is a small-molecule ghrelin mimetic. A trial in older adults found increased fat-free mass without an improvement in strength or physical function.
Related compounds
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Modified GRF 1-29
Modified GRF 1-29 is a label used for modified growth-hormone-releasing-factor fragments, often described by sellers as “CJC no DAC.” The selected primary study concerns albumin-binding conjugates rather than a confirmed DAC-free preparation.
Research topics
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PEG-MGF
PEG-MGF is a seller and research term associated with pegylated mechano-growth-factor fragments. Naming in this area can blur several distinct biological materials.
Research topics
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Sermorelin
Sermorelin is a growth-hormone-releasing-hormone fragment with a historical pediatric medicine record. That history needs to be distinguished from current wellness marketing.
Research topics
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Tesamorelin
Tesamorelin is a prescription peptide for excess abdominal fat in HIV-associated lipodystrophy. It is not a general weight-loss medicine.
Prescription medicines
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Vosoritide
Vosoritide is a C-type natriuretic peptide analogue studied for growth in children with achondroplasia. Its disease-specific evidence does not support height-increase claims for healthy adults.
Prescription medicines
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