mary & may tranexamic acid + glutathione eye cream Mary&May Glutathion I Korean Skincare – Korean-Skincare It also contains Vitamin C to stimulate collagen production and improve dull skin tone Introducing Mary&May's exclusive Glutathione Eye

Vitamin C requires careful pH management and protective packaging to maintain potency, while GHK-Cu remains stable across broader formulation conditions

A peptide stored perfectly may remain highly stable beyond the estimated window, while the same peptide may lose significant potency much sooner if exposed to: Room temperature for extended periods Excessive light Improper pH Microbial contamination Repeated freeze-thaw cycles Aggressive shaking This is why laboratory technique is often just as important as the peptide itself

J Cell Mol Med

[2] Insulin, synthroid and forteo are not banned

Some patients come in specifically asking about peptides, while others are introduced to them as part of a broader wellness or longevity plan