Inositol, a vitamin-like substance, aids in regulating insulin and serotonin levels, contributing to mood enhancement and appetite control
This 2007 study from Seoul National University is the cornerstone of copper peptide hair research it was the first to demonstrate, using real human hair follicles, that a specific copper peptide called AHK-Cu can directly stimulate hair growth at the cellular level
Development 137 , 40614072 (2010)
Reality: Glutathione may help with general dullness and some forms of hyperpigmentation, but conditions like melasma often require a multi-faceted approach, including professional dermatological care and strict sun avoidance, as noted by the American Academy of Dermatology (AAD)
doi:10.1097/AUD.0000000000001306
Peer review Peer review information Nature Metabolism thanks Philip Board, Emiliana Borrelli and Eero Castren for their contribution to the peer review of this work