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 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 trials71111115, 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.
While AOD-9604 works as a synthetic fragment of human growth hormone corresponding to residues 176–191 with an added N-terminal tyrosine, retaining lipolytic but not growth-promoting actions; proposed to stimulate lipolysis and inhibit lipogenesis in adipose tissue, partly via β3-adrenergic pathways without significantly activating the full GH receptor–IGF-1 axis6171111, GHK-Cu is 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.
AOD-9604
GH1
GHK-Cu
Not assigned in the current dataset.
AOD-9604 and GHK-Cu are noticeably different, with limited direct overlap in their usual biological context. Their typical research and application settings separate fairly clearly: AOD-9604 is more often discussed in the realm of Metabolic and endocrine, whereas GHK-Cu is more often associated with the realm of Dermatology and aesthetics and Aging and longevity. Their biological logic is quite different: AOD-9604 is a hormone analog, whereas GHK-Cu is a gene expression modulator and a signaling modulator. AOD-9604 has a more synthetic analog origin, while GHK-Cu is closer to natural endogenous background and their development context also differs, with AOD-9604 in Preclinical development while GHK-Cu is cosmetic grade. Their sequence patterns also diverge, with AOD-9604 showing hydrophobic domain features and GHK-Cu showing protein-mimetic sequence features.