glutathione reductase with nadph NOX-like ROS production by NADPH-dependent and -independent Disulfide Reductase
Description
Lerner-Ellis, J.P., J.C

The different types of toxicity to drugs include dose-dependent reactions that may be an extension of a drugs therapeutic effect, pathological toxicity, genotoxicity, allergic reactions, and idiosyncratic reactions (see Side Bar TYPES OF THERAPEUTIC DRUG TOXICITY)

L., Kramer, A

But success here depends entirely on the causes of your greying, and how much damage/depletion has occurred to hair follicle melanocyte stem cells