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 GHK-Cu acts as a tissue-remodeling and wound-healing signal, enhancing skin regeneration, angiogenesis, and repair while reducing inflammation and oxidative damage in experimental models31383, Humanin exerts neuroprotective and cytoprotective effects in models of Alzheimer’s disease, ischemia, and metabolic stress, reducing apoptosis and improving cell survival7136141.
While GHK-Cu works as an endogenous tripeptide, Gly-His-Lys, that chelates Cu²⁺ and modulates gene expression, stimulating collagen, elastin, proteoglycan, and glycosaminoglycan synthesis while exerting antioxidant and anti-inflammatory effects31383, Humanin is 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.
GHK-Cu
Not assigned in the current dataset.
Humanin
MT-RNR2
The clearest overlap between GHK-Cu and Humanin is that both converge around Signaling modulator. Both are often discussed in Aging and longevity contexts, while GHK-Cu is more of a signal peptide and Matrikine and Humanin is better described as a mitochondrial peptide and Neuropeptide. Both appear to work through Signaling modulator, but the functional emphasis still separates, with GHK-Cu leaning toward Collagen and elastin stimulation, Tissue repair and healing, and Antioxidant activity and Humanin leaning toward Neuroprotection and cognition, Mitochondrial function modulation, and Anti-inflammatory. GHK-Cu has a more natural endogenous origin, while Humanin is closer to mitochondrial-encoded background and their development context also differs, with GHK-Cu cosmetic grade while Humanin is in Preclinical development. Their sequence patterns also diverge, with GHK-Cu showing protein-mimetic sequence features and Humanin showing alpha-helical domain features.