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Research Peptide Comparisons

These are objective, side-by-side comparisons of the most-studied research peptides, covering origin, mechanism focus, research applications, and vial sizes, so you can match a compound to your research question. Every compound compared is third-party tested and sold for research use only.

Research use only. This compound is sold strictly for laboratory and in-vitro research. It is not a drug, supplement, food, or cosmetic, is not approved by the FDA, is not intended to diagnose, treat, cure, or prevent any disease, and is not for human or animal consumption. Dosing figures are reference values from the research literature for laboratory models only.
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Semaglutide vs Tirzepatide
A long-acting GLP-1 receptor agonist studied extensively in metabolic research.
CJC-1295 vs Ipamorelin
A GHRH analog studied for growth-hormone-release research, with and without DAC.
Ipamorelin vs GHRP-6
A selective growth-hormone-releasing peptide studied for clean GH-pulse research.
GHRP-2 vs GHRP-6
A potent GHRP studied for growth-hormone release with less appetite signaling than GHRP-6.
CJC-1295 vs Tesamorelin
A GHRH analog studied for growth-hormone-release research, with and without DAC.
Melanotan I vs Melanotan II
A more selective melanocortin agonist studied for pigmentation research.
PT-141 vs Melanotan II
A melanocortin agonist studied for libido and sexual-function research.
Selank vs Semax
A synthetic peptide studied for anxiolytic and cognitive research.
Semax vs N-Acetyl Semax Amidate
A synthetic peptide studied for cognition, focus, and neuroprotection research.
Epithalon vs GHK-Cu
A tetrapeptide studied in telomere and longevity research.
Tesamorelin vs AOD 9604
A GHRH analog studied for visceral-fat and metabolic research.
IGF-1 LR3 vs Hexarelin
A long-acting IGF-1 analog studied as one of the most anabolic research peptides.
BPC-157 vs GHK-Cu
A pentadecapeptide widely studied for tendon, ligament, and gut-tissue repair.
TB-500 vs IGF-1 LR3
A synthetic version of the active region of Thymosin Beta-4, studied for deep-tissue regeneration.
Kisspeptin vs Gonadorelin
A GnRH-stimulating peptide studied for fertility and hormone research.
Gonadorelin vs HCG
A synthetic GnRH peptide studied for pulsatile hormone research.
DSIP vs Selank
A naturally occurring peptide studied for sleep and stress research.
Semaglutide vs AOD 9604
A long-acting GLP-1 receptor agonist studied extensively in metabolic research.
CJC-1295 vs Hexarelin
A GHRH analog studied for growth-hormone-release research, with and without DAC.

See also the in-depth article: BPC-157 vs TB-500 · all research guides