Peptable

Comparison

Acetyl tetrapeptide-5 vs PT-141

Function

While 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 glycation51150159154, PT-141 is FDA-approved for treatment of hypoactive sexual desire disorder in premenopausal women and is studied for sexual dysfunction in other populations, increasing sexual desire via CNS melanocortin pathways42101.

Mechanism

While Acetyl tetrapeptide-5 works as a synthetic tetrapeptide, Ac-βAla-His-Ser-His (Eyeseryl), with reported ACE-1 inhibition and anti-glycation activity, proposed to improve microcirculation and reduce capillary permeability and fluid accumulation in periorbital tissues51150159157, PT-141 is the synthetic melanocortin receptor agonist bremelanotide, an analog of α-MSH that activates central MC3R and MC4R to modulate neuronal circuits governing sexual desire and arousal3242101.

Receptor

Acetyl tetrapeptide-5

Acts as an enzyme inhibitor (eg, ACE-1, glycation-related pathways) rather than via a specific membrane receptor51159

PT-141

Melanocortin receptors, with highest functional relevance at MC4R and MC3R; also binds MC1R and MC5R3242

Organism or Origin

Acetyl tetrapeptide-5

Fully synthetic cosmetic peptide (Eyeseryl) 150157

PT-141

Synthetic analog of human α-MSH derived from POMC428190

Gene

Acetyl tetrapeptide-5

Not assigned in the current dataset.

PT-141

POMC

Summary

The clearest overlap between Acetyl tetrapeptide-5 and PT-141 is that both converge around Signaling modulator. Their typical research and application settings separate fairly clearly: Acetyl tetrapeptide-5 is more often discussed in the realm of Dermatology and aesthetics, whereas PT-141 is more often associated with the realm of Reproductive health. Both appear to work through Signaling modulator, but the functional emphasis still separates, with Acetyl tetrapeptide-5 leaning toward Anti-inflammatory and PT-141 leaning toward . Acetyl tetrapeptide-5 has a more synthetic design origin, while PT-141 is closer to synthetic analog background and their development context also differs, with Acetyl tetrapeptide-5 cosmetic grade while PT-141 is approved. Acetyl tetrapeptide-5 takes the form of a linear peptide, whereas PT-141 is closer to a cyclic peptide.

Related articles

No related articles are linked to these peptides yet.

Sources

51[PDF] Acetyl tetrapeptide-5 - SkinMiles, https://skinmiles.com/wp-content/uploads/2017/12/Matriskin-Ingredients.pdf
150The important eye peptide of acetyl tetrapeptide-5 - ChemicalBook, https://www.chemicalbook.com/article/the-important-eye-peptide-of-acetyl-tetrapeptide-5.htm
153Acetyl Tetrapeptide-5 (Eyeseryl) | CAS 820959-17-9 Manufacturer ..., https://www.conscientia-industrial.com/peptides/acetyl-tetrapeptide-5-eyeseryl-cas-820959-17-9
154Bioactive peptides in cosmetic formulations: Review of ..., https://www.sciencedirect.com/science/article/pii/S0196978125001019
157Effects of Peptides in Cosmetics, https://aapep.bocsci.com/resources/cosmetic-peptides.html
159Acetyl tetrapeptide-5 | ACE-1 Inhibitor | MedChemExpress, https://www.medchemexpress.com/acetyl-tetrapeptide-5.html
32PT-141 (Bremelanotide): Research Applications and Quality ..., https://wheretofindpeptides.com/research/pt-141-bremelanotide-research-applications-and-quality-assessment-1
42[PDF] The Discovery and Development of Bremelanotide (PT-141), https://www.benchchem.com/pdf/The_Discovery_and_Development_of_Bremelanotide_PT_141_A_Technical_Guide.pdf
81Proopiomelanocortin (POMC), the ACTH/melanocortin precursor, is ..., https://pmc.ncbi.nlm.nih.gov/articles/PMC2253185/
90alpha-Melanocyte stimulating hormone: production and degradation, https://pmc.ncbi.nlm.nih.gov/articles/PMC3936413/
101PT-141 (Bremelanotide Acetate): Clinical Overview, Uses ... - eNavvi, https://enavvi.com/insights/pt-141-bremelanotide-for-sexual-dysfunction-clinical-guide-for-physicians