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 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 effects111, Matrixyl is a widely used cosmetic peptide with evidence of stimulating extracellular matrix synthesis and reducing wrinkle appearance in skin-care formulations48.
While BPC-157 works as a synthetic 15-amino-acid fragment of a gastric cytoprotective protein that promotes angiogenesis and tissue protection primarily by modulating VEGFR2 signaling, Src/caveolin-1–dependent eNOS activation, and nitric oxide production111, Matrixyl is a palmitoylated pentapeptide, Pal-Lys-Thr-Thr-Lys-Ser (Pal-KTTKS), that acts as a matrikine, signaling to dermal fibroblasts to increase production of collagen, elastin, fibronectin, and other ECM components4858.
BPC-157
VEGFR2 (vascular endothelial growth factor receptor 2) on endothelial cells, with downstream eNOS and nitric-oxide–mediated signaling11
Matrixyl
Not clearly established in the current dataset.
BPC-157
Not assigned in the current dataset.
Matrixyl
Not assigned in the current dataset.
Both peptides fall into a similar broad context as Signal peptides, although the details of how they are used and discussed still diverge. Both are often discussed in Dermatology and aesthetics contexts, while BPC-157 is more of a signal peptide and Matrixyl is better described as a matrikine. Their biological logic is quite different: BPC-157 is a signaling modulator, whereas Matrixyl is a matrix remodeling modulator. BPC-157 has a more synthetic analog origin, while Matrixyl is closer to synthetic design background and their development context also differs, with BPC-157 in Preclinical development while Matrixyl is cosmetic grade. BPC-157 takes the form of a linear peptide, whereas Matrixyl is closer to a peptide conjugate, Matrixyl incorporates palmitoylation features that are not part of BPC-157; while their sequence patterns also diverge, with BPC-157 showing proline-rich features and Matrixyl showing protein-mimetic sequence features.