Science
Mechanism of Action
Palmitoyl Tripeptide-28 functions as a biomimetic signal peptide, engaging with the TGF-beta receptor 2 on fibroblast membranes. This interaction triggers the synthesis of crucial extracellular matrix components such as collagen and elastin, bolstering skin structure, firmness, and elasticity. Additionally, it helps to preserve skin integrity by inhibiting metalloproteinases (MMPs), which are responsible for collagen degradation, and enhances cell adhesion through integrin stimulation, further maintaining dermal strength.
Research
Clinical Evidence
Medium confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Palmitoylation enhances the peptide's stability and improves its penetration into the skin, optimizing its delivery and effectiveness.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has not specifically reviewed Tripeptide-28. However, other tripeptides (e.g., Tripeptide-1, Palmitoyl Tripeptide-1) have been deemed safe in cosmetic use at typical concentrations below 10 ppm, though these conclusions are limited to their specific sequences. Suppliers for Palmitoyl Tripeptide-28 typically report no heavy metals, skin, or eye irritation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Tripeptide-28 is a valuable biomimetic peptide that effectively targets signs of aging and scarring by bolstering the skin's structural integrity and stimulating collagen production, exhibiting a favorable safety profile suitable for all skin types.
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