Acetyl tetrapeptide-5
is used in cosmetic eye formulations to decrease puffiness, eye bags, and dark circles by reducing edema and protecting proteins such as SOD from glycation
Alanine
Ala / A · hydrophobic residue · neutral charge
AOD-9604
is studied as an anti-obesity peptide that can reduce weight gain and increase fat oxidation in obese animal models with generally neutral effects on IGF-1 and glucose metabolism in early human trials
Arginine
Arg / R · basic residue · positive charge
Argireline
is a topical cosmetic peptide reported to decrease dynamic wrinkles by partially mimicking the mechanism of botulinum toxin in a non-invasive manner
Asparagine
Asn / N · polar residue · neutral charge
Aspartic acid
Asp / D · acidic residue · negative charge
BPC-157
is investigated for accelerating healing of gastrointestinal mucosa, tendons, ligaments, bone, and nervous tissue in preclinical models, with anti-inflammatory and pro-angiogenic effects
Comparison
While CJC-1295 is used in research to chronically elevate endogenous growth hormone and IGF-1 levels, enabling studies of body composition, metabolic, and anti-aging effects of prolonged GH exposure10, Setmelanotide is approved for chronic weight management in patients with POMC, PCSK1, LEPR deficiencies and Bardet–Biedl syndrome by reducing hunger and promoting weight loss92.
While CJC-1295 works as a tetrasubstituted 29-amino-acid analog of GHRH(1–29) that acts as a potent agonist at the GHRH receptor and, in its DAC form, covalently binds serum albumin to extend half-life from minutes to days, resulting in sustained pulsatile GH and IGF-1 increase1082, Setmelanotide is a potent synthetic melanocortin-4 receptor (MC4R) agonist derived from a POMC/α-MSH–related sequence that restores downstream MC4R signaling in genetic obesity syndromes3192100.
CJC-1295
GHRH
Setmelanotide
POMC
The clearest overlap between CJC-1295 and Setmelanotide is that both converge around Receptor agonist. Both are often discussed in Metabolic and endocrine contexts, while CJC-1295 is more of a hormone peptide and Setmelanotide is better described as a metabolic peptide and Neuropeptide. Both appear to work through Receptor agonist, but the functional emphasis still separates, with CJC-1295 leaning toward Anabolic growth and Setmelanotide leaning toward Metabolic regulation and Lipolysis and fat loss. CJC-1295 has a more synthetic analog origin, while Setmelanotide is closer to synthetic design background and their development context also differs, with CJC-1295 in Preclinical development while Setmelanotide is approved. CJC-1295 takes the form of a peptide conjugate, whereas Setmelanotide is closer to a cyclic peptide, while their sequence patterns also diverge, with CJC-1295 showing alpha-helical domain features and Setmelanotide showing protein-mimetic sequence features.