glutathione quercetin Quercetin, 120 Capsules (500 mg per Capsule) can i take quercetin and
Description
There are also other treatments you can try if you want to address your acne scars, hyperpigmentation, and dark spots

Jan 2016;32(1):1-22
[PubMed]^6 U.S

[2] This means it can lighten hyperpigmented lesions without causing generalized bleaching of unaffected skin

My field of research - the transport and pathophysiology of vitamin B12
It can no longer act as an antioxidant until it is "recharged" or recycled back into its reduced form
