Best For Skin Types
All, Sensitive, Mature
Addresses
Usage Frequency
Daily
What Is Tetrapeptide-7?
Tetrapeptide-7 is a synthetic peptide—a short chain of amino acids—designed to mimic natural skin signalling molecules. In cosmetics, it typically appears in a palmitoylated form (palmitoyl tetrapeptide-7), which helps it penetrate the skin barrier and interact with skin cells more effectively.
This ingredient functions as a skin conditioning agent, with research suggesting it may support the structural integrity of the skin, particularly in sensitive or aged areas like the periorbital region (around the eyes).
How It Works
Tetrapeptide-7 is thought to work by interacting with skin cells to influence the production and maintenance of extracellular matrix proteins—the structural scaffolding that keeps skin firm and hydrated. By supporting these natural processes, the peptide may help preserve skin quality and resilience.
The palmitoylated form enhances penetration through the stratum corneum, allowing the peptide to reach viable skin cells where it can exert these effects. This mechanism is gentler than some other anti-ageing approaches, which may explain its inclusion in products designed for sensitive skin.
Clinical Evidence & References
Clinical research on tetrapeptide-7 is limited but encouraging. A 12-week trial of an eye cream containing this peptide alongside other active ingredients showed improvements in skin hydration, elasticity, and collagen density in the periorbital area, as measured by validated devices including ultrasound imaging.
Peptides including this one have been identified in cosmetics for sensitive skin, with research supporting their ability to interact with skin cells and work effectively at low concentrations. However, most studies evaluate multi-ingredient formulations, so isolating the specific contribution of tetrapeptide-7 alone requires further research.
Published Research
How to Use
Tetrapeptide-7 is typically found in eye creams and targeted treatments. Apply a small amount to clean skin, gently patting around the orbital bone. Since it's often included alongside other actives, check your product's instructions for layering guidance. Results tend to develop gradually over weeks of consistent use.
Safety & Precautions
Frequently Asked Questions
From the Clinic
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