what does topical glutathione do - Cream Topical Glutathione: How It Works

Harkey MA et al

Before adding GHK-Cu to your health routine, youd do well to conduct patch testing with a topical form of the peptide.15 If you experience a localized reaction, you may be prone to the copper uglies, or else a sensitivity or allergy

Glutathione Patch uses iontophoresisa mild electrical currentto move Glutathione through the skin and into the bloodstream directly, bypassing digestion entirely, offering a needle-free middle ground between the convenience of a pill and the direct absorption of an IV

J Physiol Paris, 1999

Heme binding to human alpha-1 proteinase inhibitor

So, the FDA, for now at least, allows NMN and similar supplements to be sold openly on the market