Is there a skin lightening pill that really works?

I tried glutithione for 4-6 months. It didn't work. I didn't get sick even once though! :D
Later,
Atreu

Is there a a skin lightening pill that really works?
Honestly, I don't know. I have found topical lotions to work well for me personally. Most pills are very expensive and take a while to show results.
If you want to know some affordable ingredients that you can add to your own lotion to turn it into an effective skin lightener, just let me know.
Peace atreu