Because it is lot-specific, it lets you verify exactly what was tested for the material you received rather than relying on a generic product claim
The ideal pH window for GHK-Cu stability falls between 5.0 and 6.5, narrower than many other peptides tolerate
Ingredients: Water, butylene glycol (1,3, butanediol), tocofersolan, hyaluronic acid, ethanol, caprylyl glycol, medium chain triglycerides, copper tripeptide-1 (GHK-Cu), highly purified phospholipids, natural mixed tocopherols, Psoralea corylifolia seed/leaf extract (Bakuchiol), Tetrahexyldecyl ascorbate, lavender essential oil, estriol, estradiol Other Ingredients: None
Koshland, D
Also, at all visits, a blood aliquot of 7 mL was drawn for complete blood cell counts, chemistry, and lactate dehydrogenase