Peptable

Comparison

Acetyl tetrapeptide-5 vs Sermorelin

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, Sermorelin is used as a diagnostic agent for assessing GH secretory capacity and as a research tool or off-label therapy to increase endogenous GH in GH-deficient or age-related contexts1727.

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, Sermorelin is a synthetic 29-amino-acid peptide identical to the 1–29 N-terminal fragment of human GHRH that stimulates GH synthesis and secretion by binding pituitary GHRH receptors1727120.

Receptor

Acetyl tetrapeptide-5

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

Sermorelin

Growth hormone–releasing hormone receptor (GHRHR) on pituitary somatotrophs94103120

Organism or Origin

Acetyl tetrapeptide-5

Fully synthetic cosmetic peptide (Eyeseryl) 150157

Sermorelin

Synthetic peptide corresponding to human hypothalamic GHRH(1–29) 17120

Gene

Acetyl tetrapeptide-5

Not assigned in the current dataset.

Sermorelin

GHRH

Summary

Acetyl tetrapeptide-5 and Sermorelin 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 Sermorelin is more often associated with the realm of Metabolic and endocrine and Aging and longevity. They also influence different molecular systems, with Acetyl tetrapeptide-5 tracking more closely to Extracellular matrix proteins while Sermorelin centers more on Growth hormone axis. Acetyl tetrapeptide-5 has a more synthetic design origin, while Sermorelin is closer to synthetic analog background and their development context also differs, with Acetyl tetrapeptide-5 cosmetic grade while Sermorelin is approved. Acetyl tetrapeptide-5 carries acetylation features, while Sermorelin instead reflects amidation changes.

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
17Sermorelin - Wikipedia, https://en.wikipedia.org/wiki/Sermorelin
27Sermorelin, https://pubchem.ncbi.nlm.nih.gov/compound/Sermorelin
94Growth-hormone-releasing hormone receptor - Wikipedia, https://en.wikipedia.org/wiki/Growth-hormone-releasing_hormone_receptor
103Growth-hormone-releasing hormone receptor - Wikipedia, https://en.wikipedia.org/wiki/Growth_hormone_releasing_hormone_receptor
120Growth hormone–releasing hormone - Wikipedia, https://en.wikipedia.org/wiki/Growth_hormone%E2%80%93releasing_hormone