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 Humanin exerts neuroprotective and cytoprotective effects in models of Alzheimer’s disease, ischemia, and metabolic stress, reducing apoptosis and improving cell survival7136141, PEG-MGF is used experimentally to enhance muscle repair and hypertrophy after mechanical overload or injury by stimulating satellite-cell activation and protein synthesis6373138.
While Humanin works as a mitochondrial-derived 24-amino-acid peptide that protects cells against diverse apoptotic insults by interacting with cell-surface cytokine receptor complexes and intracellular targets, thereby activating pro-survival STAT3 and other pathways7136141, PEG-MGF is a poly(ethylene glycol)-conjugated form of Mechano Growth Factor (IGF-1Ec splice variant) comprising the 24-aa C-terminal E-peptide of IGF-1, designed to extend half-life while activating IGF-1 receptor–mediated anabolic signaling in muscle satellite cells637322138.
Humanin
MT-RNR2
PEG-MGF
IGF1
The clearest overlap between Humanin and PEG-MGF is that both converge around Signaling modulator. Both are often discussed in Cardiovascular health contexts, while Humanin is more of a mitochondrial peptide and Neuropeptide and PEG-MGF is better described as a signal peptide. Both appear to work through Signaling modulator, but the functional emphasis still separates, with Humanin leaning toward Neuroprotection and cognition, Mitochondrial function modulation, and Anti-inflammatory and PEG-MGF leaning toward Anabolic growth and Tissue repair and healing. Humanin has a more mitochondrial-encoded origin, while PEG-MGF is closer to synthetic analog background and both are still best understood as being in Preclinical development. Humanin takes the form of a linear peptide, whereas PEG-MGF is closer to a peptide conjugate, PEG-MGF incorporates pegylation features that are not part of Humanin; while their sequence patterns also diverge, with Humanin showing alpha-helical domain features and PEG-MGF showing protein-mimetic sequence features.
No related articles are linked to these peptides yet.