glutathione based serum KisoCare 20,000 ppm | Clear + Radiant Complexion | Niacinamide, Panthenol, Vitamin C 074ppm of Vaccinium Vitis [ma:nyo] Glutathione 7 Dark Spot

IV drips can include powerful antioxidants like glutathione, which is known for its skin-lightening properties

That reputation traces back to the biology around thymosin beta-4, not to a large body of modern human sports trials proving those outcomes

[DOI] [PubMed] [Google Scholar] 387.Nishio K., Horie M., Akazawa Y., Shichiri M., Iwahashi H., Hagihara Y., Yoshida Y., Niki E

[DOI] [PMC free article] [PubMed] [Google Scholar] 129.Ezzat G.M., Nassar A.Y., Bakr M.H., Mohamed S., Nassar G.A., Kamel A.A

This should make it easy to stow for travel

However, GHK-CU has more research support and may be gentler for sensitive skin