Palmitoyl Pentapeptide-4: The Original Matrixyl That Launched Cosmetic Peptide Science
Palmitoyl Pentapeptide-4 (CAS 214047-00-4), also known as Palmitoyl Pentapeptide-3 or by its trade name Matrixyl, is the peptide that fundamentally changed the cosmetic industry. Developed by Sederma in the early 2000s, this palmitoylated pentapeptide with the sequence Pal-KTTKS demonstrated for the first time that a topical peptide could produce measurable, clinically validated wrinkle reduction. With a molecular weight of 802.05 g/mol, Matrixyl remains one of the most extensively studied and widely used cosmetic peptides two decades after its introduction.
Mechanism of Action: Collagen Fragment Mimicry
The KTTKS sequence is a fragment of type I procollagen (the C-terminal propeptide region) that serves as a natural feedback signal during collagen turnover. When collagen is degraded, these fragments accumulate and signal fibroblasts to synthesize replacement matrix proteins. Palmitoyl Pentapeptide-4 mimics this matrikine signaling, activating fibroblasts to produce collagen, elastin, fibronectin, and glycosaminoglycans (GAGs) including hyaluronic acid.
The palmitoyl (C16) fatty acid conjugation at the N-terminus serves two critical functions. First, it dramatically improves penetration through the lipid-rich stratum corneum barrier, which is the primary delivery challenge for hydrophilic peptides. Second, it anchors the peptide within cell membranes, prolonging receptor interaction time and increasing biological potency per molecule delivered.
Landmark Efficacy Data
The original Sederma clinical study established Palmitoyl Pentapeptide-4 as the benchmark for cosmetic peptide efficacy. At a concentration of just 8 ppm pure peptide, the study demonstrated a 68% improvement in wrinkle area after 4 months of twice-daily application. This was groundbreaking because it proved that peptide signaling molecules could produce visible structural changes in skin at remarkably low concentrations.
Perhaps more significant for the cosmetics industry was the split-face comparative study against retinol. At 0.005% concentration, Matrixyl performed comparably to 0.07% retinol for wrinkle reduction but with substantially less irritation, erythema, and photosensitivity. This finding opened the door for effective anti-aging products targeting consumers who could not tolerate retinoids, and positioned peptides as a viable alternative to the retinoid gold standard.
Historical Significance in Cosmetic Science
Before Matrixyl, cosmetic peptides were largely theoretical. The success of Palmitoyl Pentapeptide-4 validated the entire concept of topical peptide signaling and triggered an industry-wide research effort that produced hundreds of cosmetic peptides over the following two decades. Matrixyl 3000 (Palmitoyl Tripeptide-1 + Palmitoyl Tetrapeptide-7), Matrixyl Synthe 6, Argireline, Leuphasyl, and countless other peptide actives can all trace their commercial viability back to the clinical proof of concept established by the original Matrixyl studies.
Formulation Guidelines
| Parameter | Specification |
|---|---|
| INCI Name | Palmitoyl Pentapeptide-4 (syn. Palmitoyl Pentapeptide-3) |
| CAS Number | 214047-00-4 |
| Molecular Weight | 802.05 g/mol |
| Sequence | Pal-KTTKS |
| Recommended Use Level | 10-100 ppm pure peptide, or 2-5% of commercial solution |
| Optimal pH Range | 5.0 – 7.0 |
| Addition Temperature | Below 45 degrees C (cool-down phase) |
| Solubility | Oil-soluble (palmitoyl chain) |
Processing and Compatibility
Palmitoyl Pentapeptide-4 follows the standard processing protocol for palmitoylated peptides: incorporate into the oil phase or pre-dissolve in a lipophilic carrier (caprylic/capric triglyceride, squalane, or similar) before emulsification. Add during the cool-down phase below 45 degrees C to preserve peptide bond integrity. The effective concentration range of 10–100 ppm pure peptide makes this one of the most potent cosmetic actives by weight, requiring precise dosing during scale-up.
Matrixyl is compatible with most cosmetic ingredients including hyaluronic acid, niacinamide, vitamin C derivatives (at appropriate pH), and other peptides. It layers well in multi-peptide serums and can be combined with the newer Matrixyl 3000 components for a comprehensive collagen-targeting approach.
Supply from TCS NEXUS S.L.
TCS NEXUS S.L. in Valencia, Spain, provides Palmitoyl Pentapeptide-4 with complete analytical characterization: HPLC purity greater than 95%, mass spectrometry verification, amino acid analysis, and full certificate of analysis. As a European peptide supplier, we offer direct EU shipping with no customs delays for European formulators. Technical consultation is available for formulators transitioning from commercial Matrixyl solutions to pure peptide incorporation.
Frequently Asked Questions
What is the difference between Palmitoyl Pentapeptide-4 and Palmitoyl Pentapeptide-3?
They are the same molecule. The INCI nomenclature was updated from Palmitoyl Pentapeptide-3 to Palmitoyl Pentapeptide-4 during a regulatory revision. Both names refer to Pal-KTTKS with CAS 214047-00-4. Use the current designation Palmitoyl Pentapeptide-4 for new product registrations and labeling.
How does Matrixyl compare to Matrixyl 3000?
Original Matrixyl (Palmitoyl Pentapeptide-4) is a single peptide that stimulates broad matrix protein synthesis. Matrixyl 3000 is a two-peptide system (Palmitoyl Tripeptide-1 + Palmitoyl Tetrapeptide-7) that combines collagen stimulation with anti-inflammaging activity. Both are effective; the choice depends on formulation strategy and target claims.
Why are such low concentrations effective?
Palmitoyl Pentapeptide-4 functions as a signaling molecule, not a structural ingredient. Like hormones, signaling peptides operate at very low concentrations because they trigger amplified cellular responses through receptor-mediated cascades. Each peptide molecule activates intracellular pathways that upregulate transcription of multiple matrix protein genes.
Further reading: See also: Cosmetic Peptides Technical Guide | Anti-Aging Peptide Comparison
Technical Fit and Sourcing Focus
Palmitoyl Pentapeptide-4/3 gives the site a strong Matrixyl-type peptide page for anti-wrinkle and visible skin-smoothing positioning.
Best-Fit Applications
- Anti-wrinkle creams and premium smoothing serums
- Matrix-support and visible texture-improvement concepts
- Comparative sourcing for Matrixyl-type peptide programs
How This Page Fits the Core Peptide Cluster: This page is intentionally linked with adjacent anti-aging, brightening, repair, and matrix-support peptides so crawlers can follow a tighter topical path across the site.
Technical Support and Samples
Request COA documents, sample availability, or support for custom synthesis.
Frequently Asked Questions
What makes Palmitoyl Pentapeptide-4/3 commercially useful for indexing and sourcing?
It maps to a recognizable Matrixyl-type anti-wrinkle use case, which gives the page clearer search intent and stronger topical fit than low-priority legacy URLs.
Do you support portfolio discussions around Palmitoyl Pentapeptide-4/3?
Yes. TCS can help position it alongside other firming, collagen-support, and anti-aging peptides for broader procurement planning.
Do you provide COA documents for Matrixyl (Palmitoyl Pentapeptide-4/3) Supplier EU?
Yes. Each lot can be supplied with a Certificate of Analysis, HPLC purity data, and relevant quality-control results for technical review.
Are samples available for Matrixyl (Palmitoyl Pentapeptide-4/3) Supplier EU?
Yes. Sample availability can be confirmed for formulation screening and internal evaluation before a commercial order is placed.
What is the delivery lead time for Matrixyl (Palmitoyl Pentapeptide-4/3) Supplier EU?
For stocked material in Valencia, EU delivery is typically 5 to 7 business days. Final timing depends on destination and requested volume.
Do you also support custom synthesis and technical inquiries?
Yes. The team can help with custom synthesis, raw-material selection, technical documentation, and supply planning.