Myristoyl Pentapeptide-17 is a synthetic lipo-oligopeptide composed of a five-amino acid sequence (Lys-Leu-Ala-Lys-Lys) conjugated with myristic acid, enhancing its lipophilicity and facilitating transdermal delivery. This peptide is renowned for its ability to upregulate keratin gene expression, a pivotal structural protein in hair and skin, thereby promoting the proliferation and fortification of hair follicles. Clinical assessments have demonstrated that formulations containing Myristoyl Pentapeptide-17 can augment the anagen (growth) phase of hair follicles, leading to increased hair density and thickness, particularly in eyelashes and eyebrows.

In skincare applications, Myristoyl Pentapeptide-17 exhibits anti-inflammatory and antimicrobial properties. It modulates pro-inflammatory cytokines, thereby alleviating skin irritation and inflammation. Additionally, its antimicrobial activity against pathogens such as Cutibacterium acnes and certain fungi contributes to a balanced skin microbiome. These attributes make it a valuable ingredient in formulations aimed at enhancing skin barrier function and overall skin health.