13 in stock Glutathione Comprime Collagen Milk Shower Gel is a strong whitening and moisturizing showel gel formulated with Hyaluronic Acid, Collagen and Glutathione tablets to give you your desired complexion
Chromatography was performed by injecting samples (3.5 l injection volume) onto an ACE EXCEL 2 C18-PFP 150 2.1 mm column (Avantor, EXL-1010-1502U), which was maintained at 30 C in the column compartment
Shelton MD, Kern TS, Mieyal JJ (2007) Glutaredoxin regulates nuclear factor kappa-B and intercellular adhesion molecule in Muller cells: model of diabetic retinopathy
What a COA (Certificate of Analysis) Should Include Identity Confirmation Mass spectrometry confirming correct molecular weight (~401 Da for GHK-Cu, ~340 Da for GHK alone) Explicit identification of the product as GHK-Cu (copper complex), not GHK alone Amino acid sequence verification matching Gly-His-Lys Purity Testing HPLC purity look for 98%+ purity HPLC chromatogram should show a single dominant peak Copper content analysis (atomic absorption or ICP-MS) confirming stoichiometric chelation Contamination Testing Endotoxin levels (bacterial contamination) Residual solvent analysis (acetonitrile, TFA) Heavy metals screening (other than the intentional copper) How to Verify a COA Is Legitimate Check the testing lab Reputable labs include Janoshik Analytical, MZ Biolabs, and Colmaric Analyticals
