does cacao have glutathione vs Dark Chocolate: Which Is Healthier? Benefits Explained Quicksilver Scientific Liposomal Glutathione -

& Phipps, R

Peer review Peer review information Communications Biology thanks Arash Salahinejad and the other, anonymous, reviewer(s) for their contribution to the peer review of this work

Research overwhelmingly describes the safety of GHK-Cu positively, such as when the authors of a 2018 review called it a safe, inexpensive, extensively studied compound.14 However, even though copper peptides have demonstrated an impressive safety track record in studies, there are (as with most skin care actives) a few safety risks to consider

Essentially, the lack of modern data proving it doesnt happen is the reason for the restriction

The risk with topical use is relatively low since systemic absorption is limited

Its good for those who need Vitamin B12 to be released slowly over time