hypothesis glutathione persister cells Sublethal cytochrome c release generates drug-tolerant cells: Cell Frontiers | A Shift in
Description
(in Eng)

BMC Med (2010) 8:54

Reduction of Hyperpigmentation: Dark spots, sun damage, and acne scars can be visibly reduced with glutathione treatments

By inhibiting melanin synthesis, it gradually reduces the appearance of these darkened areas and evens out the skin tone

Neither is strictly "better" as they perform different roles
