glutathione ratio in cytoplasm Frontiers Glutathione Disulfide - an overview
Description
Protect Skin from the Sun The sun being the principal source of melanin, confining its influence to UV exposure is more effective than anything else

Ishii et al., 2005)

44 KaruppagounderS
no human dosing has ever been validated

Either way, youre curious and thats a great place to start
