Product Description PalmitoylTetrapeptide-7, also known as PalmitoylTetrapeptide-3, has an amino acid sequence of PChemicalbookal Gly Gln ProArg, abbreviated as Pal-GQPR. It belongs to the palmitoyl oligopeptide series of signaling peptides. Palmitoyl Tetrapeptide-7 mimics the activity of DHEA, the youth hormone that functions to reverse IL-6 over-production. Palmitoyl Tetrapeptide-7 can enhance the functions in a variety of skin care and color cosmetic formulation. They are available in both water dispersible form (Corum 8804) and oil dispersible form (Corum 8814 / 8814CC). Item Palmitoyl Tetrapeptide-3/Palmitoyl Tetrapeptide-7 CAS 221227-05-0 Molecular formula C34H62N8O7 Purity 99% Applications Cosmetic Peptide Appearance White Powder Shelf Life 24 Months Properly Storage BASIC ANALYSIS Item Specification Result Test Methods Appearance white powder Conforms Organoleptic Odor & taste Characteristic Conforms Organoleptic Mesh size Through 80 mesh Conforms 80 mesh screen Assay ≥98.0% 99.23%（HPLC） HPLC Loss on Drying ≤5.00% 3.85% Drying Method Ash ≤5.00% 3.29% Ashing Method Heavy metals Total Heavy Metals ≤10ppm Conforms Arsenic ≤1ppm Conforms GF AAS Lead ≤2ppm Conforms AFS Cadmium ≤1ppm Conforms AFS Hygrargyrum ≤0.1ppm Conforms AFS Residual Solvent Meet the requirements Conforms SOP/SA/SOP/SUM/304 Pesticide Residue Meet the requirements Not detected SOP/SA/SOP/SUM/304 Microbiological Tests Total Plate Count ≤5000cfu/g Conforms Bacterial culture Total Yeast & Mold ≤100cfu/g Conforms Bacterial culture E.Coli Negative Conforms Bacterial culture Salmonella Negative Conforms Bacterial culture Staphylococcus Negative Conforms Bacterial culture Function Two peptides work in conjunction to improve firmness and tone of the eye area. Chrysin and N-hydroxysuccinimide stimulate the clearance of deposited blood pigments and solubilize iron for elimination respectively, resulting in the reduction of dark circles