Comparison

Argireline vs Sermorelin

Function

While Argireline is a topical cosmetic peptide reported to decrease dynamic wrinkles by partially mimicking the mechanism of botulinum toxin in a non-invasive manner49, 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 Argireline works as acetyl hexapeptide-8 (Ac-Glu-Glu-Met-Gln-Arg-Arg-NH2), a SNAP-25–mimetic peptide that competitively inhibits SNARE complex assembly, reducing acetylcholine release at neuromuscular junctions and attenuating facial muscle contraction4959, 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.

Length and Sequence

Argireline is 6 amino acids long, whereas Sermorelin is longer as it has a length of 29 amino acids. Argireline is made up of a sequence of Glutamic acid, Glutamic acid, Methionine, Glutamine, Arginine, Arginine. Sermorelin is made up of a sequence of Tyrosine, Alanine, Aspartic acid, Alanine, Isoleucine, Phenylalanine, Threonine, Asparagine, Serine, Tyrosine, Arginine, Lysine, Valine, Leucine, Glycine, Glutamine, Leucine, Serine, Alanine, Arginine, Lysine, Leucine, Leucine, Glutamine, Aspartic acid, Isoleucine, Methionine, Serine, Arginine.

Receptor

Argireline

Molecular target is the SNARE complex component SNAP-25 rather than a classical receptor; it interferes with SNAP-25 participation in vesicle fusion49

Sermorelin

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

Organism or Origin

Argireline

Fully synthetic neuropeptide used in cosmetic formulations49

Sermorelin

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

Gene

Argireline

Not assigned in the current dataset.

Sermorelin

GHRH

Related articles

No related articles are linked to these peptides yet.

Sources

49Acetyl Hexapeptide-8 - Argireline - ChemPep, https://chempep.com/product/acetyl-hexapeptide-8/
59Argireline (Acetyl Hexapeptide-8), https://grindergym.com/argireline-acetyl-hexapeptide-8/
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