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 PEG-MGF is used experimentally to enhance muscle repair and hypertrophy after mechanical overload or injury by stimulating satellite-cell activation and protein synthesis6373138, Semax is used clinically in Russia for ischemic stroke and cognitive disorders; in models it improves learning, protects dopaminergic neurons, and modulates stress responses without significant endocrine ACTH-like effects166174.
While PEG-MGF works as 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, Semax is a synthetic heptapeptide, Met-Glu-His-Phe-Pro-Gly-Pro (MEHFPGP), that is an analog of ACTH(4–10) with a Pro-Gly-Pro extension and exerts neurotrophic and neuroprotective actions partly via upregulation of BDNF and modulation of dopaminergic and glutamatergic systems40162165174.
PEG-MGF
IGF1
Semax
POMC
The clearest overlap between PEG-MGF and Semax is that both converge around Signaling modulator. Their typical research and application settings separate fairly clearly: PEG-MGF is more often discussed in the realm of Musculoskeletal health and Cardiovascular health, whereas Semax is more often associated with the realm of Neurology and brain health and Ophthalmology. Both appear to work through Signaling modulator, but the functional emphasis still separates, with PEG-MGF leaning toward Anabolic growth and Tissue repair and healing and Semax leaning toward Neuroprotection and cognition. Both are synthetic in origin with PEG-MGF in Preclinical development and Semax approved for Research use only. PEG-MGF takes the form of a peptide conjugate, whereas Semax is closer to a linear peptide, while PEG-MGF incorporates pegylation features that are not part of Semax.
No related articles are linked to these peptides yet.