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, KPV is investigated as an anti-inflammatory and barrier-protective agent in skin and mucosal models, reducing pro-inflammatory cytokines and promoting tissue repair684.
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, KPV is the C-terminal Lys-Pro-Val tripeptide fragment of α-MSH, which exerts potent anti-inflammatory effects largely via inhibition of NF-κB signaling and modulation of cytokine expression, with many actions independent of classical melanocortin receptor activation684.
CJC-1295
GHRH
KPV
POMC
CJC-1295 and KPV are noticeably different, with limited direct overlap in their usual biological context. Their typical research and application settings separate fairly clearly: CJC-1295 is more often discussed in the realm of Metabolic and endocrine and Aging and longevity, whereas KPV is more often associated with the realm of Immunology and inflammation, Gastroenterology, and Dermatology and aesthetics. They also influence different molecular systems, with CJC-1295 tracking more closely to Growth hormone axis while KPV centers more on Melanocortin receptor. CJC-1295 has a more synthetic analog origin, while KPV is closer to natural endogenous background and both are still best understood as being in Preclinical development. CJC-1295 takes the form of a peptide conjugate, whereas KPV is closer to a linear peptide, CJC-1295 incorporates d-amino acid substitution features that are not part of KPV; while their sequence patterns also diverge, with CJC-1295 showing alpha-helical domain features and KPV showing protein-mimetic sequence features.