Comparison
While Matrixyl is a widely used cosmetic peptide with evidence of stimulating extracellular matrix synthesis and reducing wrinkle appearance in skin-care formulations48, Thymosin Beta-4 promotes wound healing, angiogenesis, and tissue regeneration in preclinical models via effects on cytoskeleton dynamics, cell migration, and anti-apoptotic pathways25579.
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, Thymosin Beta-4 is an endogenous 43-amino-acid actin-sequestering peptide that maintains a pool of G-actin monomers and regulates actin polymerization, thereby influencing cell migration, proliferation, and differentiation25579.
Matrixyl is 5 amino acids long, whereas Thymosin Beta-4 is longer as it has a length of 43 amino acids. Matrixyl is made up of a sequence of Lysine, Threonine, Threonine, Lysine, Serine. Thymosin Beta-4 is made up of a sequence of Serine, Aspartic acid, Lysine, Proline, Aspartic acid, Methionine, Alanine, Glutamic acid, Isoleucine, Glutamic acid, Lysine, Phenylalanine, Aspartic acid, Lysine, Serine, Lysine, Lysine, Proline, Aspartic acid, Methionine, Alanine, Glutamic acid, Glutamic acid, Lysine, Phenylalanine, Aspartic acid, Lysine, Lysine, Glutamic acid, Lysine, Lysine, Glutamic acid, Glutamic acid, Alanine, Glutamic acid, Asparagine, Glutamic acid, Glutamic acid, Lysine, Glutamic acid, Serine.
Matrixyl
Not clearly established in the current dataset.
Thymosin Beta-4
Binds actin monomers (G-actin) at both barbed and pointed ends to sterically block polymerization55
Matrixyl
Not assigned in the current dataset.
Thymosin Beta-4
TMSB4X