The peptide stacks guide provides framework for thinking through combinations
GHK-Cu in particular is sensitive to heat, oxygen, pH drift, and microbial contamination each of which can break the peptide bond, dissociate the copper ion, or otherwise inactivate the molecule before it reaches your scalp
Storage conditions Once opened, keep in the refrigerator Composition of Glutation Defense Vitamin C Water, Stabilizer: (E-422) Glycerin
Chong J, Soufan O, Li C, Caraus I, Li S, Bourque G, et al
Using GHK-Cu has an advantage over using just GHK, since it alleviates copper deficiency without the risk of oxidative damage
Erectile dysfunction in young non-obese type II diabetic Goto-Kakizaki rats is associated with decreased eNOS phosphorylation at Ser 1177