Science
Mechanism of Action
This synthetic signal peptide, rich in lysine and threonine residues, acts by promoting the endogenous synthesis of critical dermal components including collagen, elastic fibers, polysaccharides, and hyaluronic acid. This multifaceted action leads to enhanced skin hydration, consequently diminishing the appearance of wrinkles and fine lines. Furthermore, it directly stimulates keratin genes, a mechanism implicated in promoting longer, fuller eyelashes. Its structure allows for efficient penetration through the stratum corneum into the dermis.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Myristoyl Pentapeptide-7 is typically provided in a fine powder form, facilitating its straightforward incorporation into diverse cosmetic formulations. For optimal stability, analogous peptides (e.g., Myristoyl Pentapeptide-17) are recommended for short-term storage between 0-4°C and long-term storage at -20°C, in a dry, dark environment.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has evaluated related peptides, specifically Myristoyl Pentapeptide-4, Palmitoyl Pentapeptide-4, and Pentapeptide-4, deeming them safe for use in cosmetics at their current concentrations and practices. However, a specific safety assessment for Myristoyl Pentapeptide-7 by the CIR Expert Panel is not yet available. For context, Myristoyl Pentapeptide-4 has been reported at concentrations up to 0.0035% in hair conditioners and 0.012% in leave-on face and neck preparations.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Myristoyl Pentapeptide-7 presents a compelling theoretical mechanism for skin rejuvenation and lash enhancement; however, its overall efficacy and safety profile require more specific clinical data and regulatory review before definitive assessment.
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References
Sources