Peptides / Category
GH Secretagogues Peptide Testing
Growth hormone secretagogues span short GHRPs (5–7 residues) to longer GHRH analogs like tesamorelin (44 aa). Short peptides are usually high-purity but frequently mis-labeled; long GHRH analogs commonly show truncation and oxidation.
Recommended Panel
- ✓RP-HPLC purity
- ✓ESI-MS identity
- ✓Amino acid analysis
- ✓Residual solvents (GC-MS)
Common Impurities to Watch For
Sequence truncation, methionine oxidation, racemization at D-amino-acid positions, deamidation.
GH Secretagogues peptides we test (9)
CJC-1295 (DAC)
3647.28 g/mol
GHRH analog with Drug Affinity Complex for extended half-life (~8 days).
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CJC-1295 (no DAC) / Modified GRF 1-29
3367.93 g/mol
GHRH analog without DAC, shorter half-life than CJC-1295 with DAC.
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GHRP-2
817.97 g/mol
Synthetic hexapeptide stimulator of GH release.
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GHRP-6
872.97 g/mol
Hexapeptide stimulating GH secretion via the ghrelin receptor.
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Hexarelin
887.04 g/mol
Potent hexapeptide GH secretagogue; also studied for cardiac effects.
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Ibutamoren (MK-677)
528.66 g/mol
Orally active non-peptide GH secretagogue / ghrelin agonist.
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Ipamorelin
711.86 g/mol
Selective pentapeptide GHRP. Minimal cortisol/prolactin release.
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Sermorelin
3357.88 g/mol
Synthetic GHRH (1-29) analog. Short half-life.
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Tesamorelin
5135.89 g/mol
N-terminally modified 44-aa GHRH analog, FDA-approved as Egrifta.
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