Palmitoyl Pentapeptide-4
| Product Name | Palmitoyl Pentapeptide-4 |
|---|---|
| CAS Number | 214047-00-4 |
| Molecular Formula | C39H75N9O7 |
| Molecular Weight | 802.06 g/mol |
| Appearance | White to off-white powder |
| Purity (HPLC) | ≥95.0% |
| Solubility | Soluble in water, ethanol, and propylene glycol |
| Storage | Store at 2-8°C, protected from light and moisture |
| Package | 1 g, 10 g, 100 g, or 1 kg in amber glass bottles or aluminum foil bags |
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Synonyms: Pal-GQPR, Palmitoyl-Gly-Gln-Pro-Arg, Matrixyl 3000 Component, N-Palmitoyl-Glycyl-L-Glutaminyl-L-Prolyl-L-Arginine, Palmitoyl Pentapeptide-3, Matrixyl
Palmitoyl Pentapeptide-4 is a synthetic lipopeptide that has become a staple in advanced anti-aging formulations. Its structure features a palmitic acid moiety conjugated to the N-terminus of the pentapeptide sequence glycine-glutamine-proline-arginine (GQPR), a fragment derived from the procollagen I alpha-1 chain. This lipophilic modification enhances skin penetration, allowing the peptide to reach deeper layers of the epidermis where it can exert its biological effects. Since its introduction in the early 2000s, it has been widely studied for its ability to support collagen synthesis and improve the appearance of aging skin.
The mechanism of action involves the stimulation of collagen types I, III, and IV, as well as fibronectin and hyaluronic acid production. Unlike topical retinoids that can cause irritation, Palmitoyl Pentapeptide-4 offers a gentler alternative with a favorable safety profile. It is often combined with other peptides, such as Palmitoyl Tripeptide-1 and Palmitoyl Tetrapeptide-7, to create synergistic anti-aging complexes. Its efficacy has been validated in numerous in vitro and clinical studies, demonstrating visible reductions in wrinkle depth and improved skin texture.
As a cosmetic ingredient, Palmitoyl Pentapeptide-4 is typically supplied as a high-purity powder (≥95% HPLC) that is easily incorporated into emulsions, serums, and gels. It is compatible with a broad range of formulation ingredients and is stable under normal storage conditions. The recommended usage level ranges from 1% to 5%, depending on the desired effect and the specific product format. Its versatility and proven performance make it a valuable asset for formulators targeting the premium anti-aging market.
| Parameter | Specification |
|---|---|
| Assay (HPLC) | ≥95.0% |
| Identification | Matches reference standard |
| Appearance | White to off-white powder |
| Water Content | ≤5.0% |
| Heavy Metals | ≤10 ppm |
| Microbial Limits | Total aerobic count ≤1000 CFU/g; Yeast & Mold ≤100 CFU/g; E. coli absent |
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