Peptable

Comparison

Acetyl tetrapeptide-5 vs Kisspeptin

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, Kisspeptin is a key regulator of the hypothalamic–pituitary–gonadal axis, controlling puberty and fertility; kisspeptin-10 also inhibits trophoblast invasion and tumor metastasis in experimental models339199.

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, Kisspeptin is a family of peptides (eg, kisspeptin-10, -13, -14, -54) derived from the KISS1 precursor that activate G-protein–coupled receptor KISS1R (GPR54), triggering GnRH release and regulating pubertal onset and reproductive axis activity339199.

Receptor

Acetyl tetrapeptide-5

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

Kisspeptin

KISS1R (GPR54) kisspeptin receptor33919943

Organism or Origin

Acetyl tetrapeptide-5

Fully synthetic cosmetic peptide (Eyeseryl) 150157

Kisspeptin

Endogenous human peptide products of the KISS1 gene9199

Gene

Acetyl tetrapeptide-5

Not assigned in the current dataset.

Kisspeptin

KISS1

Summary

Acetyl tetrapeptide-5 and Kisspeptin are noticeably different, with limited direct overlap in their usual biological context. Their typical research and application settings separate fairly clearly: Acetyl tetrapeptide-5 is more often discussed in the realm of Dermatology and aesthetics, whereas Kisspeptin is more often associated with the realm of Reproductive health. They also influence different molecular systems, with Acetyl tetrapeptide-5 tracking more closely to Extracellular matrix proteins while Kisspeptin centers more on GPCR receptor. Acetyl tetrapeptide-5 has a more synthetic design origin, while Kisspeptin is closer to natural endogenous background and their development context also differs, with Acetyl tetrapeptide-5 cosmetic grade while Kisspeptin is in Preclinical development. Acetyl tetrapeptide-5 carries acetylation features, while Kisspeptin instead reflects amidation changes.

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
70Kisspeptin-10, rat, https://pubchem.ncbi.nlm.nih.gov/compound/Kisspeptin-10_-rat
91Kisspeptin - Wikipedia, https://en.wikipedia.org/wiki/Kisspeptin
99Kisspeptin-1 - an overview, https://www.sciencedirect.com/topics/biochemistry-genetics-and-molecular-biology/kisspeptin-1