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| Product name | CAS:827306-88-7;Acetyl tetrapeptide-3 |
| Sequence | Ac-KGHK-NH2 |
| Three letter sequence | Ac-Lys-Gly-His-Lys-NH2 |
| Peptide purity (HPLC, %) | 95%/99% |
| Molecular formula | C22H39N9O5 |
| Molecular weight (Da) | 509.6 |
Product Basic Information Table
| Product Standard English Name | Product Abbreviation / Alias | Function Tags (comma-separated) | Amino Acid Full Name Sequence | Molecular Formula | Exact Molecular Weight (Da) | Average Molecular Weight (Da) | Terminal Modification - N-terminus | Terminal Modification - C-terminus | Sequence Length (aa) |
| Acetyl tetrapeptide-3 | #Acetyl tetrapeptide 3 #Anti-aging firming peptide; #Fibronectin stimulating peptide; #Cosmetic active peptide | Skin firming & anti-aging, fibronectin upregulation, fibroblast activation, skin barrier repair, fine line reduction, cosmetic functional raw material | Acetyl-Glycine-Glutamine-Proline-Arginine | C₂₃H₄₁N₁₁O₇ | 579.3193 | 579.64 | Acetylation modification | Free carboxyl group | 4 |
Physicochemical Solubility & Storage Parameters
| Product Code | Appearance | Long-term Storage Conditions | Short-term Storage Conditions | Liquid Stability | Solid Powder Stability |
| PEP-AT03 | White powder | -20℃, sealed away from light, aliquoted, avoid repeated freeze-thaw | 2-8℃, use within 1 month; prepare fresh before experiment | Stable for 24 h at 4℃ | 3 years at -20℃, 2 years at 4℃ |
Functional Description
| Product Code | Frontend Short Summary (for search list display) | Detailed Biological Function Description | Applicable Research Areas (comma-separated) | Target / Receptor |
| PEP-AT03 | Acetyl tetrapeptide-3, classic cosmetic anti-aging tetrapeptide, activates fibroblasts to secrete fibronectin for in vitro efficacy test of firming & anti-wrinkle skincare | Acetyl tetrapeptide-3 is synthetic N-terminally acetylated tetrapeptide. It targets dermal fibroblasts to markedly boost the expression of fibronectin and laminin, reinforcing dermal extracellular matrix network. It suppresses matrix metalloproteinase (MMP) activity to slow down collagen and elastin degradation, relieving skin sagging and fading fine lines. Widely applied in cosmetic active ingredient screening, skin aging cell models, skin barrier repair and in vitro anti-aging efficacy verification assays, suitable for skin pharmacology and cosmetic raw material development research | Skin pharmacology, cosmetic active raw materials, skin firming anti-aging, fibronectin regulation, fibroblast culture, anti-wrinkle efficacy screening | Dermal fibroblasts, fibronectin encoding gene, MMP metalloproteinases, extracellular matrix synthesis pathway |
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