GHK-Cu (glycyl-L-histidyl-L-lysine copper) is a naturally occurring tripeptide bound to a copper ion
As we age, however, glutathione levels naturally decline, which is why many wellness professionals are now focusing on ways to help replenish and support optimal levels
If you already have a sensitivity to sulfites, supplementing with glutathione can possibly increase the sulfites if you are deficient in molybdenum
doi:10.1530/eje.0.1390552 National Center for Biotechnology Information
PLoS One 8:e65811 Singh K, Gupta R, Shokat S, Iqbal N, Kocsy G, Prez-Prez JM, Riyazuddin R (2024a) Ascorbate, plant hormones and their interactions during plant responses to biotic stress
Cureus .