Is glutathione effective?

I've only just gotten into glutathione and am looking into it.

I'm at war with melasma these days, lol.

Even if I go to the dermatologist, I feel like I should try doing something at home.

I'm looking into ones with a high content.

I used to feel like my skin became brighter overall with Vitamin C.

I hope this works too.

For now, I'm using the glutathione toner and serum (a lot at night... haha).

I think I'll try eating it too.