I've been taking liposomal gluthathione supplements since I started brightening my skin on Sept.2022.I started off with x2 1000MG tablets daily for the first 60 days . Last month, I added x1 Glutha White 1,500,000mg and but still take x1 1000mg liposomal gluthathione. I also take a daily liposomal vitamin C 1650mg tablet. Does it work to maintain my lightness? I can't say for sure because I'm a newbie who is still in process of brightening my body. I don't really know what my skin brightening results would be without gluthathione supplements. I can say that, in the last month, I have gone days without using any products( exfoliants, lighters, peelers. etc.) but my skin never showed signs of re-darkening. I know that I don't have much experience with lightening but I feel my results have been pretty good and consistent despite many mistakes along the way.
Here is how my skin looked in Sept.2022 versus how it looks now. I won't stop using gluthathione anytime soon.