Science
Mechanism of Action
Tripeptide-1, also known as Glycine-Histidine-Lysine (GHK), functions primarily as a signal peptide, actively stimulating the skin's natural production of collagen, elastin, fibronectin, and laminin, which are crucial for maintaining skin elasticity and reducing the appearance of wrinkles. It also acts as a carrier peptide, facilitating the delivery of copper ions to form GHK-Cu, further supporting various skin functions including tissue repair and protection against oxidative stress. When combined with a hexapeptide, such as the described Hexapeptide-12, the complex is engineered to synergistically promote the removal of aged collagen and elastin fragments while simultaneously boosting the synthesis of new, healthy structural proteins. This coordinated action helps to improve overall skin health and accelerate recovery.
Research
Clinical Evidence
Medium confidenceN/A
Transparency
Dusting Analysis
Peptides are potent ingredients often effective at very low concentrations. While a Tripeptide-1 derivative showed efficacy at 0.0003%, and individual peptides typically range up to 0.003%, concentrations significantly below 0.0003% (e.g., 0.0001% or 1 ppm) should be critically evaluated. Formulations containing this complex at such low levels may primarily serve a marketing purpose rather than delivering substantial clinical benefits.
The Formula
Formulation
Stability
Tripeptide-1 is water-soluble. Formulations containing Copper Tripeptide-1 have demonstrated stability across typical cosmetic pH ranges. Attaching palmitic acid to Tripeptide-1 can enhance its oil solubility and improve skin penetration.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded that Tripeptide-1, Hexapeptide-12, and their derivatives are safe for use in cosmetics at current concentrations. Studies consistently show a low potential for skin irritation and sensitization. Tripeptide-1 at 3% concentration was deemed safe, non-irritating, and non-sensitizing for all skin types. While some unpurified commercial preparations of Tripeptide-1 may contain mildly neurotoxic materials, these are typically removed through standard purification processes.
Your Skin
Skin Compatibility
Our Assessment
Verdict
HEXAPEPTIDE-56 TRIPEPTIDE-1 is a valuable multi-functional peptide complex, clinically demonstrated to significantly improve signs of photodamage, stimulate collagen and elastin, and aid post-procedure skin recovery, with a high safety profile and broad skin compatibility.
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