is glutathione drip effective for skin lightening: a regnant myth or evidence-based verity? Benefits of Glutathione Injections Near
Description
In addition to ADCs targeting ZIP6, a few small molecules have been reported

Stereospecific inactivation of tyrosinase by L- and D-ascorbic acid

The data is enlightening, and better than I expect

Urology 61 , 12781284 (2003)
