With a molecular weight of ~307 daltons and a polar structure, glutathione is small enough to be absorbed through the nasal lining without additional absorption enhancers in many users
Imboden M, Rochat T, Brutsche M, Schindler C, Downs SH, Gerbase MW, et al
Because they operate through distinct pathways, GHK-Cu and AHK-Cu are complementary rather than redundant
GHK-Cu should be kept in a cool, dry place and protected from light and moisture
and actually SARS-CoV-2 causing COVID-19, all are characterized by persistent inflammation, continuous production of reactive oxygen/nitrogen species and oxidative stress that predominate over the antioxidant defenses (GSH and free radical scavenger enzymes) resulting in cell/tissue/organ aging associated with early (premature) chronic inflammation/inflammaging. We propose that, although inflammaging was introduced for the aging process (276289), it could also apply to early (premature) tissue and organ aging associated with cell and tissue damage caused by excessive oxidative stress and lack of adequate antioxidant defenses, especially low GSH levels, in younger individuals
So pay close attention to this when buying a glutathione supplement