Comparison

Matrixyl vs Melanotan II

Function

While Matrixyl is a widely used cosmetic peptide with evidence of stimulating extracellular matrix synthesis and reducing wrinkle appearance in skin-care formulations48, Melanotan II is studied as a tanning and libido-enhancing agent; increases melanin production and can reduce food intake and modulate sexual arousal in animal models and humans3545.

Mechanism

While Matrixyl works as 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, Melanotan II is a cyclic heptapeptide melanocortin analog (Ac-Nle-cyclo[Asp-His-D-Phe-Arg-Trp-Lys]-NH2) that acts as a non-selective, high-potency agonist at MC1R, MC3R, MC4R, and MC5R, influencing pigmentation, appetite, and sexual behavior3545.

Length and Sequence

Matrixyl is 5 amino acids long, whereas Melanotan II is longer as it has a length of 7 amino acids. Matrixyl is made up of a sequence of Lysine, Threonine, Threonine, Lysine, Serine. Melanotan II is made up of a sequence of Nle, Aspartic acid, Histidine, Phenylalanine, Arginine, Tryptophan, Lysine.

Receptor

Matrixyl

Not clearly established in the current dataset.

Melanotan II

Melanocortin receptors MC1R, MC3R, MC4R, and MC5R (non-selective agonist) 3545

Organism or Origin

Matrixyl

Synthetic lipopeptide derived from a collagen I C-terminal fragment sequence5158

Melanotan II

Synthetic analog of POMC-derived melanocortin peptides358190

Gene

Matrixyl

Not assigned in the current dataset.

Melanotan II

POMC

Related articles

No related articles are linked to these peptides yet.

Sources

48Palmitoyl Pentapeptide-4 - R&D PEPTIDE.ONE, https://rnd.peptide.one/product/palmitoyl-pentapeptide-4-pal-lys-thr-thr-lys-ser/
51[PDF] Acetyl tetrapeptide-5 - SkinMiles, https://skinmiles.com/wp-content/uploads/2017/12/Matriskin-Ingredients.pdf
58[PDF] Safety Assessment of Myristoyl Pentapeptide-4, Palmitoyl ..., https://www.cir-safety.org/sites/default/files/Pentapeptide%20Ingredients.pdf
35What is melanotan II? - Creative Peptides, https://www.creative-peptides.com/resources/what-is-melanotan-ii-peptide.html
45[PDF] melanotan-II peptide structure and molecular formula - Benchchem, https://www.benchchem.com/pdf/melanotan_II_peptide_structure_and_molecular_formula.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/