What glutathione supplement has the most skin lightening benefits? What’s your experience?

I’m primarily interested in taking glutathione for skin lightening purposes. My baseline skin color on my scalp and under my eyebrows and my ear color, is where I’d like to go back to. so mainly reversing a very stubborn sun tan. I’ve heard that setria brand glutathione has clinical evidence in reducing melanogenesis. I was thinking codeage liposomal glutathione was best for that. I’m also planning on taking a liposomal vitamin c along side it.

In your experience how effective has it been, whether the lightening was intended or not. Is the one I chose the best? Or are there better alternatives. I’m NOT interested in taking injections so don’t reccomend that. And PLEASE no aphorisms about appreciating natural skin color I literally do not care.